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.
Deputy Litigation Director, Institute for Justice
Robert McNamara serves as Deputy Litigation Director with the Institute for Justice. He joined the Institute in August 2006 and litigates cutting-edge constitutional cases protecting free speech, property rights, economic liberty and other individual liberties in both federal and state courts.
Robert’s work has resulted in court victories for property owners fighting eminent domain abuse, tour guides fighting unconstitutional restrictions on their speech, taxi drivers seeking the right to own their own business, and many others. Robert also litigates in defense of innovation and entrepreneurship in medical care and was co-counsel in Flynn v. Holder, IJ’s landmark challenge to the federal prohibition on compensating bone marrow donors.
Robert’s writing has been published by outlets including The New York Times, The Wall Street Journal, The Washington Post and dozens more nationwide. His opinions and views on legal issues have been featured in radio and television programs ranging from National Public Radio’s All Things Considered to Fox News Channel’s Hannity & Colmes.
Robert is a graduate of Boston University and the New York University School of Law, where he was a founding member and eventual editor-in-chief of the NYU Journal of Law & Liberty. He currently lives in Virginia with his wife and children.
Robert McNamara is a member of the Virginia bar.
Michael primarily litigates cases related to police misconduct and racial discrimination. He graduated Harvard Law School, cum laude, and Brandeis University, summa cum laude. Previously, Michael clerked for the Hon. John R. Fisher on the District of Columbia Court of Appeals and interned with the Special Litigation Section of DOJ’s Civil Rights Division. He has also represented tenants facing eviction and prisoners in disciplinary hearings. In addition to his legal experience, Michael has worked on a political campaign and served as a fellow at an organization that helps people on public assistance find employment.
Michael enjoys running and, one day, hopes to learn how to dance.
Professor of Law, University of Michigan Law School
Christopher J. Walker is a Professor of Law at the University of Michigan. Prior to joining Michigan law faculty in 2022, he spent a decade teaching at The Ohio State University Moritz College of Law. He previously clerked for Justice Anthony Kennedy of the U.S. Supreme Court, worked on the Civil Appellate Staff at the U.S. Department of Justice, and served on the Senate Judiciary Committee staff for the Gorsuch Supreme Court confirmation. Professor Walker’s research focuses on administrative law, regulation, and law and policy at the agency level. Outside the law school, he chaired the American Bar Association’s Section of Administrative Law and Regulatory Practice in 2020-21 and served as one of forty Public Members of the Administrative Conference of the United States from 2016-2022, and he continues to serve in both organizations in various capacities. He also works of counsel at the U.S. Chamber Litigation Center. In 2022, he received the Federalist Society’s Joseph Story Award.
Partner, Clement & Murphy, PLLC
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
Partner, Clement & Murphy, PLLC
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
Partner, Clement & Murphy, PLLC
Erin Murphy is founding partner of Clement & Murphy, PLLC. She is widely recognized as one of the nation’s leading Supreme Court and appellate advocates. She has argued dozens of cases in appellate and trial courts throughout the country, including the Supreme Court and nearly all of the federal courts of appeals. Erin has long been ranked by Chambers & Partners rankings as a leading appellate practitioner, and the National Law Journal has named her one of the nation’s “Outstanding Women Lawyers.” Erin also has an active pro bono practice, through which she has successfully represented many religious organizations and adherents, criminal defendants, asylum applicants, adoptive parents, and more.
Erin is an adjunct professor at her alma mater the Georgetown University Law Center, a member and former officer of the Edward Coke Appellate Inn of Court, and a frequent speaker on topics relating to the Supreme Court and appellate advocacy. In her spare time, Erin serves on the board of directors of Street Law.
Partner, Clement & Murphy, PLLC
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
President, Center for American Rights
Daniel Suhr serves as president of the Center for American Rights, where he spends every day on the front lines of the fight to preserve our rights and liberties. The Center's mission is to advance free speech, free enterprise, and parental freedom in education through strategic, precedent-setting litigation.
Daniel formerly worked as policy director for Wisconsin Governor Scott Walker, as chief of staff for Wisconsin Lieutenant Governor Rebecca Kleefisch, and as a law clerk for Judge Diane Sykes of the U.S. Court of Appeals for the Seventh Circuit. He holds a B.A. and J.D. from Marquette University, and master’s degrees from Georgetown and the University of Missouri.
Assistant Attorney General, Office of Legal Counsel, U.S. Department of Justice
T. Elliot Gaiser is the Office of Legal Counsel’s 27th Assistant Attorney General. He was nominated by President Donald Trump on April 29, 2025, confirmed by the United States Senate on July 30, 2025, and sworn in as AAG by Attorney General Pam Bondi on August 4, 2025.
Prior to joining the Office of Legal Counsel, Mr. Gaiser served as the 11th Solicitor General of Ohio. In that role, he represented his home state and its agencies before the Supreme Court of the United States, the United States Court of Appeals for the Sixth Circuit, the Supreme Court of Ohio, and other state and federal courts. He also advised Ohio Attorney General Dave Yost on significant legal and constitutional matters important to the people of Ohio.
Mr. Gaiser clerked for Justice Samuel A. Alito, Jr. of the Supreme Court of the United States, Judge Neomi Rao of the United States Court of Appeals for the D.C. Circuit, and Judge Edith H. Jones of the United States Court of Appeals for the Fifth Circuit. In the private sector, Mr. Gaiser worked at the law firms Jones Day, Boyden Gray, and Gibson Dunn. He graduated from the University of Chicago Law School and Hillsdale College. He is also a husband and father.
Crypto, Data Centers, and Climate
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