Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Laurence A. Tisch Professor of Law and Director, Classical Liberal Institute, New York University School of Law; Director, Classical Liberal Institute, Civitas Institute University of Texas at Austin
Richard A. Epstein is the Laurence A. Tisch Professor of Law, at New York University, a senior research fellow at the Civitas Institute at the University of Texas Austin, and a senior Lecturer, the University of Chicago. He received an LL.D., h.c . from the University of Ghent, 2003 , and an LLD h.c . from the University of Siegen in 2018 and the Bradley Prize in 2011. He has been a member of the American Academy of Arts and Sciences since 1985. He has edited both the Journal of Legal Studies (1981-1991) and the Journal of Law and Economics (1991-2001). He is also a founder and director of the Classical Liberal Institute at NYU Law School. His most recent book is The Classical Liberal Constitution: The Uncertain Quest for Limited Government (2014). His other books include Takings: Private Property and the Power of Eminent Domain ( 1985); Bargaining with the State (1993); Simple Rules for a Complex World (1995); Principles for a Free Society: Reconciling Individual Liberty and the Common Good (1998); Skepticism and Freedom: A Modern Theory of Classical Liberalism (2003); Design for Liberty: Private Property, Public Administration and the Rule of Law (2011), and most recently, The Myth of Birthright citizenship—and Beyond (2026). He has taught courses in , administrative law, antitrust, constitutional, contracts, environmental law, land use planning; real property, torts and water law. He has written and spoken extensively on a wide range of topics, and is writes a regular column for Defining Ideas.
Emmett Visiting Assistant Clinical Professor of Law in Environmental Law, Harvard Law School
Andrew Mergen is a Visiting Assistant Clinical Professor of Law and Faculty Director of the Emmett Environmental Law & Policy Clinic. Prior to joining the Harvard Law School faculty, Andrew Mergen served in the Appellate Section of the Environment & Natural Resources Division (ENRD) at the United States Department of Justice. Professor Mergen began his career at the Justice Department in the Honors Program and concluded his career as Chief of ENRD’s Appellate Section. He has presented oral arguments in all 13 federal courts of appeals, including two en banc courts, and before several state intermediate and supreme courts. He has also worked on over a dozen merits cases in the Supreme Court of the United States. In addition, in 2009, Professor Mergen assisted the Office of White House Counsel on the confirmation of the Honorable Sonia Sotomayor as Associate Justice of the Supreme Court. During his career at the Justice Department, Professor Mergen received the Attorney General’s Award for Distinguished Service three times. He also received ENRD’s Muskee-Chafee Award, honoring his work’s significant contribution to protecting the environment.
Before entering clinical teaching, Professor Mergen taught at several law schools including, Harvard Law School (Advanced Environmental Law), the University of Michigan Law School (Natural Resources Law) and the William S. Richardson School of Law, University of Hawaii-Manoa (Administrative Law). Professor Mergen has written about federal water rights in “A Misplaced Sensitivity: The Draft Opinions in Wyoming v. United States” (68 Colo. L. Rev. 683 (1997), with Sylvia F. Liu); energy development on public lands in “Surface Tension: The Problem of Federal Private Split Estates” (33 Land & Water L. Rev. 419 (1998)); climate change and the Endangered Species Act in “The Role of Climate Change in ESA Listing Decisions” (53 Rocky Mt. Min. L. Fdn. 67 (2016), with Murray Feldman) and the accommodation of Native American sacred sites on federal land in “Finding the Path Forward for Indigenous Sacred and Cultural Spaces on Federal Public Land,” 68 Nat. Resources & Energy L. Inst. 32-1 (2022). Professor Mergen is a graduate of the University of Wisconsin—Madison and the George Washington University Law School.
Robert F. Stanton Professor of Law, University of Maryland Carey School of Law
Robert V. Percival is the Robert F. Stanton Professor of Law and the Director of the Environmental Law Program at the University of Maryland School of Law. He received a B.A. summa cum laude from Macalester College, a J.D. from Stanford Law School and an M.A. in economics from Stanford University. At Stanford Percival was named the Nathan Abbott Scholar for graduating first in his law school class. Following graduation, he served as a law clerk for Judge Shirley M. Hufstedler of the U.S. Court of Appeals for the Ninth Circuit and for U.S. Supreme Court Justice Byron R. White. He joined the Maryland faculty in 1987 after serving as a senior attorney for the Environmental Defense Fund. Percival has served as a visiting professor of law at Harvard Law School, Georgetown University Law Center, the China University of Political Science and Law (Beijing), and Comenius University (Bratislava). He is the principal author of a leading environmental law casebook, now in its 9th edition, and the author of several articles about the Supreme Court and presidential authority over executive agencies. Percival wrote one of the first articles on the propriety of consent decrees to effectuate and enforce federal law “The Bounds of Consent: Consent Decrees, Settlements and Federal Environmental Policymaking,” 1987 Univ. Chic. Leg. F. 327 (1987). He also is the author of the first comprehensive analyses of what the papers of the late Justices Thurgood Marshall and Harry Blackmun reveal about the Supreme Court’s handling of environmental cases (“Environmental Law in the Supreme Court: Highlights from the Blackmun Papers,” 35 ELR 10637 (2005), and “Environmental Law in the Supreme Court: Highlights from the Marshall Papers,” 13 ELR 10606 (Oct. 1993)).
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Laurence A. Tisch Professor of Law and Director, Classical Liberal Institute, New York University School of Law; Director, Classical Liberal Institute, Civitas Institute University of Texas at Austin
Richard A. Epstein is the Laurence A. Tisch Professor of Law, at New York University, a senior research fellow at the Civitas Institute at the University of Texas Austin, and a senior Lecturer, the University of Chicago. He received an LL.D., h.c . from the University of Ghent, 2003 , and an LLD h.c . from the University of Siegen in 2018 and the Bradley Prize in 2011. He has been a member of the American Academy of Arts and Sciences since 1985. He has edited both the Journal of Legal Studies (1981-1991) and the Journal of Law and Economics (1991-2001). He is also a founder and director of the Classical Liberal Institute at NYU Law School. His most recent book is The Classical Liberal Constitution: The Uncertain Quest for Limited Government (2014). His other books include Takings: Private Property and the Power of Eminent Domain ( 1985); Bargaining with the State (1993); Simple Rules for a Complex World (1995); Principles for a Free Society: Reconciling Individual Liberty and the Common Good (1998); Skepticism and Freedom: A Modern Theory of Classical Liberalism (2003); Design for Liberty: Private Property, Public Administration and the Rule of Law (2011), and most recently, The Myth of Birthright citizenship—and Beyond (2026). He has taught courses in , administrative law, antitrust, constitutional, contracts, environmental law, land use planning; real property, torts and water law. He has written and spoken extensively on a wide range of topics, and is writes a regular column for Defining Ideas.
Emmett Visiting Assistant Clinical Professor of Law in Environmental Law, Harvard Law School
Andrew Mergen is a Visiting Assistant Clinical Professor of Law and Faculty Director of the Emmett Environmental Law & Policy Clinic. Prior to joining the Harvard Law School faculty, Andrew Mergen served in the Appellate Section of the Environment & Natural Resources Division (ENRD) at the United States Department of Justice. Professor Mergen began his career at the Justice Department in the Honors Program and concluded his career as Chief of ENRD’s Appellate Section. He has presented oral arguments in all 13 federal courts of appeals, including two en banc courts, and before several state intermediate and supreme courts. He has also worked on over a dozen merits cases in the Supreme Court of the United States. In addition, in 2009, Professor Mergen assisted the Office of White House Counsel on the confirmation of the Honorable Sonia Sotomayor as Associate Justice of the Supreme Court. During his career at the Justice Department, Professor Mergen received the Attorney General’s Award for Distinguished Service three times. He also received ENRD’s Muskee-Chafee Award, honoring his work’s significant contribution to protecting the environment.
Before entering clinical teaching, Professor Mergen taught at several law schools including, Harvard Law School (Advanced Environmental Law), the University of Michigan Law School (Natural Resources Law) and the William S. Richardson School of Law, University of Hawaii-Manoa (Administrative Law). Professor Mergen has written about federal water rights in “A Misplaced Sensitivity: The Draft Opinions in Wyoming v. United States” (68 Colo. L. Rev. 683 (1997), with Sylvia F. Liu); energy development on public lands in “Surface Tension: The Problem of Federal Private Split Estates” (33 Land & Water L. Rev. 419 (1998)); climate change and the Endangered Species Act in “The Role of Climate Change in ESA Listing Decisions” (53 Rocky Mt. Min. L. Fdn. 67 (2016), with Murray Feldman) and the accommodation of Native American sacred sites on federal land in “Finding the Path Forward for Indigenous Sacred and Cultural Spaces on Federal Public Land,” 68 Nat. Resources & Energy L. Inst. 32-1 (2022). Professor Mergen is a graduate of the University of Wisconsin—Madison and the George Washington University Law School.
Robert F. Stanton Professor of Law, University of Maryland Carey School of Law
Robert V. Percival is the Robert F. Stanton Professor of Law and the Director of the Environmental Law Program at the University of Maryland School of Law. He received a B.A. summa cum laude from Macalester College, a J.D. from Stanford Law School and an M.A. in economics from Stanford University. At Stanford Percival was named the Nathan Abbott Scholar for graduating first in his law school class. Following graduation, he served as a law clerk for Judge Shirley M. Hufstedler of the U.S. Court of Appeals for the Ninth Circuit and for U.S. Supreme Court Justice Byron R. White. He joined the Maryland faculty in 1987 after serving as a senior attorney for the Environmental Defense Fund. Percival has served as a visiting professor of law at Harvard Law School, Georgetown University Law Center, the China University of Political Science and Law (Beijing), and Comenius University (Bratislava). He is the principal author of a leading environmental law casebook, now in its 9th edition, and the author of several articles about the Supreme Court and presidential authority over executive agencies. Percival wrote one of the first articles on the propriety of consent decrees to effectuate and enforce federal law “The Bounds of Consent: Consent Decrees, Settlements and Federal Environmental Policymaking,” 1987 Univ. Chic. Leg. F. 327 (1987). He also is the author of the first comprehensive analyses of what the papers of the late Justices Thurgood Marshall and Harry Blackmun reveal about the Supreme Court’s handling of environmental cases (“Environmental Law in the Supreme Court: Highlights from the Blackmun Papers,” 35 ELR 10637 (2005), and “Environmental Law in the Supreme Court: Highlights from the Marshall Papers,” 13 ELR 10606 (Oct. 1993)).
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Senior Attorney of the Clean Energy Program, Earthjustice
Thomas Cmar is a senior attorney for the Clean Energy Program, and is based in Cincinnati, Ohio.
Thomas first joined Earthjustice in 2012 after working for six years as an attorney with the Natural Resources Defense Council, where he specialized in energy and water issues. Thomas was deputy managing attorney of the Earthjustice Coal Program from 2018 to 2021. In 2021, Thomas moved back home to Ohio and spent a year working in private practice before rejoining Earthjustice in 2022.
Thomas has also worked as an adjunct lecturer in the Environmental Policy & Culture Program at Northwestern University, as an attorney with the International Labor Rights Fund in Washington, D.C., and as a law clerk for United States Magistrate Judge Debra Freeman of the United States District Court for the Southern District of New York. He is a 2004 graduate of Harvard Law School and has a B.A. in Politics & Philosophy from the University of Pittsburgh.
Director of Energy Policy, Chamber of Digital Commerce, Digital Power Network
Ms. Czapla is the Director of Energy Policy of the Chamber of Digital Commerce at the Digital Power Network. Prior to her current job, she worked on energy and climate policy at Citizens for Responsible Energy Solutions and the American Action Forum. In addition, Ms. Czapla worked for more than 5 years at Arbo, where she advised developers as well as the federal government on regulatory issues that arise throughout the planning, siting, construction and operation of energy infrastructure projects.
She earned a JD from the Columbus School of Law at the Catholic University of America, as well as a BS in Geological Sciences, and a BA in Philosophy with a concentration in Public Affairs, from George Washington University.
Litigation Counsel, New Civil Liberties Alliance
Kara Rollins, Litigation Counsel, comes to NCLA with experience in vindicating client’s rights from agency overreach and holding the administrative state accountable through government transparency projects. Before joining NCLA, Kara was Counsel for Cause of Action Institute where she represented clients in various Federal Trade Commission enforcement actions. She also engaged in strategic research and oversight of Executive Branch agencies, focusing on administrative rulemaking and government oversight and compliance. Prior to joining the Cause of Action Institute in 2016, she clerked for the Hon. Karen M. Cassidy, A.J.S.C. in the Superior Court of New Jersey, Union Vicinage. Preceding her legal career, Kara served as the Political Programs Manager for the National Federation of Independent Business, where she worked with small business owners throughout the country and learned firsthand about the adverse impact the regulatory state has on individuals.
Kara graduated with honors from Rutgers College, Rutgers University with a B.A. in Political Science in 2007, and cum laude from Catholic University’s Columbus School of Law in 2014. During law school, she was a member of The Catholic University Law Review and a Moot Court Associate for the Seigenthaler-Sutherland Cup National First Amendment Moot Court Competition.
Kara is admitted to practice in the District of Columbia, New York, and New Jersey, as well as to the U.S. District Court for the District of Columbia, the U.S. Court of Appeals for the Eleventh Circuit, and the U.S. Supreme Court.
Her work has been published on The Hill.com.
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Senior Attorney of the Clean Energy Program, Earthjustice
Thomas Cmar is a senior attorney for the Clean Energy Program, and is based in Cincinnati, Ohio.
Thomas first joined Earthjustice in 2012 after working for six years as an attorney with the Natural Resources Defense Council, where he specialized in energy and water issues. Thomas was deputy managing attorney of the Earthjustice Coal Program from 2018 to 2021. In 2021, Thomas moved back home to Ohio and spent a year working in private practice before rejoining Earthjustice in 2022.
Thomas has also worked as an adjunct lecturer in the Environmental Policy & Culture Program at Northwestern University, as an attorney with the International Labor Rights Fund in Washington, D.C., and as a law clerk for United States Magistrate Judge Debra Freeman of the United States District Court for the Southern District of New York. He is a 2004 graduate of Harvard Law School and has a B.A. in Politics & Philosophy from the University of Pittsburgh.
Director of Energy Policy, Chamber of Digital Commerce, Digital Power Network
Ms. Czapla is the Director of Energy Policy of the Chamber of Digital Commerce at the Digital Power Network. Prior to her current job, she worked on energy and climate policy at Citizens for Responsible Energy Solutions and the American Action Forum. In addition, Ms. Czapla worked for more than 5 years at Arbo, where she advised developers as well as the federal government on regulatory issues that arise throughout the planning, siting, construction and operation of energy infrastructure projects.
She earned a JD from the Columbus School of Law at the Catholic University of America, as well as a BS in Geological Sciences, and a BA in Philosophy with a concentration in Public Affairs, from George Washington University.
Litigation Counsel, New Civil Liberties Alliance
Kara Rollins, Litigation Counsel, comes to NCLA with experience in vindicating client’s rights from agency overreach and holding the administrative state accountable through government transparency projects. Before joining NCLA, Kara was Counsel for Cause of Action Institute where she represented clients in various Federal Trade Commission enforcement actions. She also engaged in strategic research and oversight of Executive Branch agencies, focusing on administrative rulemaking and government oversight and compliance. Prior to joining the Cause of Action Institute in 2016, she clerked for the Hon. Karen M. Cassidy, A.J.S.C. in the Superior Court of New Jersey, Union Vicinage. Preceding her legal career, Kara served as the Political Programs Manager for the National Federation of Independent Business, where she worked with small business owners throughout the country and learned firsthand about the adverse impact the regulatory state has on individuals.
Kara graduated with honors from Rutgers College, Rutgers University with a B.A. in Political Science in 2007, and cum laude from Catholic University’s Columbus School of Law in 2014. During law school, she was a member of The Catholic University Law Review and a Moot Court Associate for the Seigenthaler-Sutherland Cup National First Amendment Moot Court Competition.
Kara is admitted to practice in the District of Columbia, New York, and New Jersey, as well as to the U.S. District Court for the District of Columbia, the U.S. Court of Appeals for the Eleventh Circuit, and the U.S. Supreme Court.
Her work has been published on The Hill.com.
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Associate, Winston & Strawn LLP
Spencer draws on his experience as a former trial and appellate clerk to litigate white collar, commercial, administrative law, and constitutional matters at every stage.
Michael J. Woodrum is an Associate at Winston & Strawn LLP.
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
President and Chief Policy Officer, CGCN
Throughout his career, Michael Catanzaro has served in several senior energy and environmental policy positions in the federal government, including the House of Representatives, U.S. Senate, the EPA, and the White House.
Before joining CGCN, Catanzaro served as Special Assistant to President Trump for Domestic Energy and Environmental Policy at the White House National Economic Council. In that role, he helped craft energy and environmental policy at multiple agencies and advised the president on the administration’s major policy decisions in that space. He previously served on the Senate Environment and Public Works Committee and on the Bush-Cheney re-election campaign as a top adviser on energy and environmental policy. Catanzaro was Associate Director for Policy in the White House Council on Environmental Quality and Associate Deputy Administrator of the EPA under former President George W. Bush. He also served as a senior adviser to then-Speaker John Boehner on energy and environmental policy.
Deputy Secretary of Energy
James P. Danly was sworn in as Deputy Secretary on June 9, 2025.
Before arriving at the Department, Deputy Secretary Danly was a partner and the Energy Regulatory Group leader at Skadden in Washington, D.C. This followed his service at the Federal Energy Regulatory Commission, first as the Commission’s general counsel then as the commissioner and chairman.
Deputy Secretary Danly was an officer in the United States Army. He served two tours in Iraq, receiving a Bronze Star and a Purple Heart.
A graduate of Yale University, Deputy Secretary Danly earned his J.D. from Vanderbilt University Law School. He clerked for Judge Danny J. Boggs of the Sixth Circuit.
Chairman, Council on Environmental Quality
Mary B. Neumayr is the current Chairman of the Council on Environmental Quality (CEQ). She was unanimously confirmed by the United States Senate on January 2, 2019, and sworn in as Chairman on January 10, 2019. Prior to her appointment, Ms. Neumayr had been serving as CEQ’s Chief of Staff since March 2017.
Before joining CEQ, Ms. Neumayr served in a variety of positions with the Committee on Energy and Commerce in the United States House of Representatives, including as Deputy Chief Counsel, Energy and Environment (2017); Senior Energy Counsel (2011-2017); and Counsel (2009-2010). Ms. Neumayr also served as Deputy General Counsel for Environment and Nuclear Programs at the Department of Energy (2006-2009) and as Counsel to the Assistant Attorney General for the Environment and Natural Resources Division at the Department of Justice (2003-2006).
Prior to her Government service, Ms. Neumayr was in private legal practice from 1989 through 2003 in New York and San Francisco. She received her B.A. from Thomas Aquinas College and J.D. from the University of California, Hastings College of the Law.
Director of the Center for Energy and Environment and Senior Fellow, Competitive Enterprise Institute
Daren Bakst is Director of the Competitive Enterprise Institute’s Center for Energy and Environment and a Senior Fellow. In this role, he manages, develops, and leads the coalition, advocacy, and research activities of the Center, which is one of the most effective advocates for Free Market Environmentalism.
Before joining CEI as Deputy Director in March, 2023, Daren was a Senior Research Fellow in Environmental Policy and Regulation at the Heritage Foundation, where he played a leading role in the launch of the organization’s new energy and environment center, and created and hosted the Heritage Foundation’s energy and environment podcast the “PowerCast.” During his decade at Heritage, Daren wrote about energy and environmental policy, food and agricultural policy (including editing and co-authoring the book Farms and Free Enterprise), regulation, and trade among other topics.
Daren also worked on environmental policy and regulation at the U.S. Chamber of Commerce, where he was a policy counsel and served as the executive to the association’s Government Oversight, Operations & Consumer Affairs committee, which was responsible for issues such as regulatory process reform. Daren has significant state level experience, working for seven years at the Raleigh, N.C.-based John Locke Foundation, one of the largest state-based, free-market think tanks. As director of legal and regulatory studies, his broad portfolio included energy and environmental policy, regulatory reform, and property rights.
Daren has testified numerous times before Congress, regularly submits comments to federal agencies and has appeared in or been quoted by a wide range of media outlets such as The Wall Street Journal, USA Today, The Washington Times, CNN, Fox Business News, Al-Jazeera America, and U.S. News and World Report. He is a member of the Federalist Society’s Environmental Law and Property Rights Executive Committee and serves on the College Level Advisory Board for Constituting America, an organization that informs and educates about the importance of the U.S. Constitution.
Daren, who hails from Florida, received his bachelor’s and master’s degrees from George Washington University. A licensed attorney, he holds a law degree from the University of Miami and a master of laws degree from American University.
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Vice President, Government Relations, PBF Energy
Director of the Center for Energy and Environment and Senior Fellow, Competitive Enterprise Institute
Daren Bakst is Director of the Competitive Enterprise Institute’s Center for Energy and Environment and a Senior Fellow. In this role, he manages, develops, and leads the coalition, advocacy, and research activities of the Center, which is one of the most effective advocates for Free Market Environmentalism.
Before joining CEI as Deputy Director in March, 2023, Daren was a Senior Research Fellow in Environmental Policy and Regulation at the Heritage Foundation, where he played a leading role in the launch of the organization’s new energy and environment center, and created and hosted the Heritage Foundation’s energy and environment podcast the “PowerCast.” During his decade at Heritage, Daren wrote about energy and environmental policy, food and agricultural policy (including editing and co-authoring the book Farms and Free Enterprise), regulation, and trade among other topics.
Daren also worked on environmental policy and regulation at the U.S. Chamber of Commerce, where he was a policy counsel and served as the executive to the association’s Government Oversight, Operations & Consumer Affairs committee, which was responsible for issues such as regulatory process reform. Daren has significant state level experience, working for seven years at the Raleigh, N.C.-based John Locke Foundation, one of the largest state-based, free-market think tanks. As director of legal and regulatory studies, his broad portfolio included energy and environmental policy, regulatory reform, and property rights.
Daren has testified numerous times before Congress, regularly submits comments to federal agencies and has appeared in or been quoted by a wide range of media outlets such as The Wall Street Journal, USA Today, The Washington Times, CNN, Fox Business News, Al-Jazeera America, and U.S. News and World Report. He is a member of the Federalist Society’s Environmental Law and Property Rights Executive Committee and serves on the College Level Advisory Board for Constituting America, an organization that informs and educates about the importance of the U.S. Constitution.
Daren, who hails from Florida, received his bachelor’s and master’s degrees from George Washington University. A licensed attorney, he holds a law degree from the University of Miami and a master of laws degree from American University.
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Vice President, Government Relations, PBF Energy
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Robert F. Stanton Professor of Law, University of Maryland Carey School of Law
Robert V. Percival is the Robert F. Stanton Professor of Law and the Director of the Environmental Law Program at the University of Maryland School of Law. He received a B.A. summa cum laude from Macalester College, a J.D. from Stanford Law School and an M.A. in economics from Stanford University. At Stanford Percival was named the Nathan Abbott Scholar for graduating first in his law school class. Following graduation, he served as a law clerk for Judge Shirley M. Hufstedler of the U.S. Court of Appeals for the Ninth Circuit and for U.S. Supreme Court Justice Byron R. White. He joined the Maryland faculty in 1987 after serving as a senior attorney for the Environmental Defense Fund. Percival has served as a visiting professor of law at Harvard Law School, Georgetown University Law Center, the China University of Political Science and Law (Beijing), and Comenius University (Bratislava). He is the principal author of a leading environmental law casebook, now in its 9th edition, and the author of several articles about the Supreme Court and presidential authority over executive agencies. Percival wrote one of the first articles on the propriety of consent decrees to effectuate and enforce federal law “The Bounds of Consent: Consent Decrees, Settlements and Federal Environmental Policymaking,” 1987 Univ. Chic. Leg. F. 327 (1987). He also is the author of the first comprehensive analyses of what the papers of the late Justices Thurgood Marshall and Harry Blackmun reveal about the Supreme Court’s handling of environmental cases (“Environmental Law in the Supreme Court: Highlights from the Blackmun Papers,” 35 ELR 10637 (2005), and “Environmental Law in the Supreme Court: Highlights from the Marshall Papers,” 13 ELR 10606 (Oct. 1993)).
Dr. Dasgupta served as Assistant Secretary for Trade and Economic Security, responsible for a comprehensive national security portfolio. His duties included oversight of the Committee on Foreign Investment in the United States (CFIUS), Team Telecom, the Forced Labor Enforcement Task Force (FLETF), Information and Communications Technology and Services (ICTS), Arctic security initiatives, the Icebreaker Collaboration Effort (ICE) Pact, and related trade matters. Sohan Dasgupta also served as political head of the Millennium Challenge Corporation (MCC), supporting U.S. foreign policy and national security objectives. Previously, he had served as Deputy General Counsel of the U.S. Department of Homeland Security (DHS).
Dr. Dasgupta holds a JD from the University of California, Berkeley, where he was elected to the Order of the Coif; a PhD in international trade and arbitration from the University of Cambridge; MSc from the University of Oxford; and BA in Economics–Operations Research and History from Columbia University. He commenced his legal career with clerkships on the U.S. Court of Appeals for the Ninth Circuit and the U.S. District Court for the Southern District of West Virginia.
Dr. Dasgupta has addressed the Hungarian, Romanian, and Guatemalan parliaments, and has spoken at the invitation of Members of the U.S. Congress, the British Parliament, the European Union Parliament, the Congress of the Philippines, and the Legislative Assembly of El Salvador.
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Dr. Dasgupta served as Assistant Secretary for Trade and Economic Security, responsible for a comprehensive national security portfolio. His duties included oversight of the Committee on Foreign Investment in the United States (CFIUS), Team Telecom, the Forced Labor Enforcement Task Force (FLETF), Information and Communications Technology and Services (ICTS), Arctic security initiatives, the Icebreaker Collaboration Effort (ICE) Pact, and related trade matters. Sohan Dasgupta also served as political head of the Millennium Challenge Corporation (MCC), supporting U.S. foreign policy and national security objectives. Previously, he had served as Deputy General Counsel of the U.S. Department of Homeland Security (DHS).
Dr. Dasgupta holds a JD from the University of California, Berkeley, where he was elected to the Order of the Coif; a PhD in international trade and arbitration from the University of Cambridge; MSc from the University of Oxford; and BA in Economics–Operations Research and History from Columbia University. He commenced his legal career with clerkships on the U.S. Court of Appeals for the Ninth Circuit and the U.S. District Court for the Southern District of West Virginia.
Dr. Dasgupta has addressed the Hungarian, Romanian, and Guatemalan parliaments, and has spoken at the invitation of Members of the U.S. Congress, the British Parliament, the European Union Parliament, the Congress of the Philippines, and the Legislative Assembly of El Salvador.
Robert F. Stanton Professor of Law, University of Maryland Carey School of Law
Robert V. Percival is the Robert F. Stanton Professor of Law and the Director of the Environmental Law Program at the University of Maryland School of Law. He received a B.A. summa cum laude from Macalester College, a J.D. from Stanford Law School and an M.A. in economics from Stanford University. At Stanford Percival was named the Nathan Abbott Scholar for graduating first in his law school class. Following graduation, he served as a law clerk for Judge Shirley M. Hufstedler of the U.S. Court of Appeals for the Ninth Circuit and for U.S. Supreme Court Justice Byron R. White. He joined the Maryland faculty in 1987 after serving as a senior attorney for the Environmental Defense Fund. Percival has served as a visiting professor of law at Harvard Law School, Georgetown University Law Center, the China University of Political Science and Law (Beijing), and Comenius University (Bratislava). He is the principal author of a leading environmental law casebook, now in its 9th edition, and the author of several articles about the Supreme Court and presidential authority over executive agencies. Percival wrote one of the first articles on the propriety of consent decrees to effectuate and enforce federal law “The Bounds of Consent: Consent Decrees, Settlements and Federal Environmental Policymaking,” 1987 Univ. Chic. Leg. F. 327 (1987). He also is the author of the first comprehensive analyses of what the papers of the late Justices Thurgood Marshall and Harry Blackmun reveal about the Supreme Court’s handling of environmental cases (“Environmental Law in the Supreme Court: Highlights from the Blackmun Papers,” 35 ELR 10637 (2005), and “Environmental Law in the Supreme Court: Highlights from the Marshall Papers,” 13 ELR 10606 (Oct. 1993)).
What Does "New" Mean? Agency Action Post-Chevron
Jonathan Brightbill, Richard A. Epstein, Andrew Mergen, Robert V. Percival
Last term, the Supreme Court handed down its ruling in Loper Bright Enterprises v. Raimondo. ...
What Does "New" Mean? Agency Action Post-Chevron
Jonathan Brightbill, Richard A. Epstein, Andrew Mergen, Robert V. Percival
Last term, the Supreme Court handed down its ruling in Loper Bright Enterprises v. Raimondo. ...
Crypto, Data Centers, and Climate
Jonathan Brightbill, Thomas Cmar, Ewelina Czapla, Kara Rollins
A Look at Federal and State Regulation of the Environmental Effects of Bitcoin
In January 2024, the U.S. Energy Information Administration (EIA) initiated an “emergency collection” of information...
Crypto, Data Centers, and Climate
Jonathan Brightbill, Thomas Cmar, Ewelina Czapla, Kara Rollins
A Look at Federal and State Regulation of the Environmental Effects of Bitcoin
In January 2024, the U.S. Energy Information Administration (EIA) initiated an “emergency collection” of information...
Pushing Pause on Liquified Natural Gas Exports: Can the Department of Energy Halt LNG Exports to Save the Planet?
Jonathan Brightbill, Spencer Churchill, Michael Woodrum
Federalist Society Review, Volume 25
The Biden-Harris Administration recently interrupted the normal, export-friendly operation of the Natural Gas Act, triggering...
Federal Permitting Reform: Now or Never?
Jonathan Brightbill, Michael Catanzaro, James P. Danly, Mary B. Neumayr
Is it Now or Never for NEPA Reform?
Join us on Wednesday, October 18th, at 12:00 PM ET for a special lunch panel...
Analyzing the EPA’s Proposed Renewable Fuel Standard Rule
Daren Bakst, Jonathan Brightbill, Brendan Williams
A Regulatory Transparency Project Webinar
On December 30, 2022, the Environmental Protection Agency (EPA) published an updated rule on the...
Analyzing the EPA’s Proposed Renewable Fuel Standard Rule
Daren Bakst, Jonathan Brightbill, Brendan Williams
A Regulatory Transparency Project Webinar
On December 30, 2022, the Environmental Protection Agency (EPA) published an updated rule on the...
Deep Dive Episode 249 - Litigation Update: Ohio v. Environmental Protection Agency
Jonathan Brightbill, Robert V. Percival, Sohan Dasgupta
Regulatory Transparency Project's Fourth Branch Podcast
The EPA has rescinded The Safer Affordable Fuel Efficient Vehicles Rule Part One: One National...
Litigation Update: Ohio v. Environmental Protection Agency
Jonathan Brightbill, Sohan Dasgupta, Robert V. Percival
A Regulatory Transparency Project Webinar
The EPA has rescinded The Safer Affordable Fuel Efficient Vehicles Rule Part One: One National...