Partner, Crowell & Moring
Mr. Lorenzen is a partner in Crowell & Moring's Washington, D.C. office and is a member of the Environment & Natural Resources and Government Affairs groups. He works with clients seeking to successfully navigate the federal environmental rulemaking process.
With a decade of Justice Department experience managing the legal defense of all EPA rules, Mr. Lorenzen has a unique ability to help clients shape environmental policy, provide vital input on proposed federal environmental regulations through written comment and direct interaction with regulators, and mount effective judicial challenges to EPA actions that adversely affect his clients' interests. He also helps clients ensure compliance with existing environmental regulations. In addition, he is a noted appellate lawyer who has briefed, argued, or supervised hundreds of petitions for review of EPA regulations and other final EPA actions.
While he was at the Department of Justice, Mr. Lorenzen oversaw many of the seminal environmental cases of the last decade. These include Massachusetts v. EPA, in which the Supreme Court affirmed EPA's authority to regulate greenhouse gases under the Clean Air Act, and Entergy v. Riverkeeper, in which the Court held that EPA has discretion under the Clean Water Act to consider or decline to consider costs in determining how to regulate cooling water intake structures. In the D.C. Circuit and the other federal courts of appeals, he oversaw the government's defense in Coalition for Responsible Regulation v. EPA, in which the court upheld EPA's first suite of greenhouse gas regulations (largely upheld by the Supreme Court in Utility Air Regulatory Group v. EPA); EME Homer City Generation, L.P. v. EPA and North Carolina v. EPA, in which the court reviewed EPA's various attempts to address interstate transport of air pollutants; numerous cases challenging EPA regulations governing emissions of hazardous air pollutants; and National Cotton Council v. EPA, in which the Sixth Circuit reviewed EPA's Clean Water Act regulations governing the application of pesticides over waters of the United States.
Mr. Lorenzen is a frequent lecturer and commentator in print, on the internet, and on television regarding federal environmental law, climate change regulation, administrative law, federal policymaking, and effective appellate brief-writing and argument.
Partner (Austin), Jackson Walker
Mike Nasi is a partner with Jackson Walker LLP where he practices environmental and energy law. He has been practicing before state and federal environmental and energy agencies and appellate courts for 24 years.
Nasi’s compliance counseling, permitting, and enforcement defense work spans the following federal (and related state) programs: Clean Air Act, Clean Water Act, Solid Waste Disposal Act, Endangered Species Act, and National Environmental Policy Act. He is often asked to play a strategic planning role on behalf of his clients in the midst of large, complex project developments.
Nasi is counsel for parties in ongoing EPA regulatory proceedings relating to carbon dioxide, interstate air quality, regional haze, and coal combustion residuals, including appeals pending before the United States Courts of Appeals for the Fifth, Eighth, Tenth, and D.C. Circuits, as well as the Supreme Court of the United States. He helps coordinate multi-state outreach efforts regarding these and other regulations impacting the electric power and mining sectors, appears at hearings and energy policy events across the country, and is published in several trade, law, and business journals on environmental law and energy policy topics.
Nasi is a past Chairman of the State Bar of Texas Environmental and Natural Resources Law Section and serves on the faculty for Rice University’s “Leadership & Decision Making in the Energy Industry” course and as a guest lecturer in the “Energy Law & Policy” course at the University of Texas Law School.
Nasi is consistently recognized on several “Who’s Who” and “Best Lawyer” lists and was recently awarded the “Energy and Environmental Trailblazer Award.” He is the Chairman of the Central Texas Salvation Army Advisory Board and is a Board Member for the West Austin Youth Association (WAYA).
University Professor of Law and Executive Director, Liberty & Law Center, Antonin Scalia Law School, George Mason University
David Bernstein holds a University Professorship chair at the Antonin Scalia Law School, where he has been teaching since 1995. He has also been a visiting professor at the University of Michigan, Georgetown University, William & Mary, Brooklyn Law School, the University of Turin, and Hebrew University. Professor Bernstein teaches Constitutional Law, Evidence, and Products Liability.
A prolific author, Professor Bernstein often challenges the conventional wisdom with prodigious research and sharp, original analysis. He is the author of five books, and coauthor of two more. Professor Bernstein’s book Rehabilitating Lochner was praised across the political spectrum as “intellectual history in its highest form,” a “fresh perspective and a cogent analysis,” “delightful and informative,” “sharp and iconoclastic,” and “a terrific work of historical revisionism.” Columnist George Will praised Bernstein’s most recent book, Classified, The Untold Story of Racial Classification in America, as “perhaps the most consequential American book of 2022.”
Professor Bernstein has also written dozens of articles and essays published in major law reviews, including the California Law Review, Columbia Law Review, Michigan Law Review, and Yale Law Journal. An article he coauthored, Defending Daubert: It’s Time to Amend Federal Rule of Evidence 702, directly inspired a pending amendment to Rule 702.
Professor Bernstein blogs at the Instapundit.com, the Times of Israel, and the Volokh Conspiracy. He is a graduate of the Yale Law School, where he was senior editor of the Yale Law Journal and a John M. Olin Fellow in Law, Economics, and Public Policy.
Tazewell Taylor Professor of Law and William H. Cabell Research Professor, William & Mary Law School
Jonathan H. Adler joined the William & Mary law faculty as the Tazwell Taylor Professor of Law and William H. Cabell Research Professor in 2025. Prior to joining the faculty, he was the inaugural Johan Verheij Memorial Professor of Law and the founding Director of the Coleman P. Burke Center for Environmental Law at the Case Western Reserve University School of Law.
Professor Adler is the author or editor of seven books, including Climate Liberalism: Perspectives on Liberty, Property and Pollution (Palgrave, 2023), Marijuana Federalism: Uncle Sam and Mary Jane (Brookings Institution Press, 2020), Business and the Roberts Court (Oxford University Press, 2016) and Rebuilding the Ark: New Perspectives on Endangered Species Act Reform (AEI Press, 2011).
His articles have appeared in publications ranging from the Harvard Environmental Law Review and Yale Journal on Regulation to the Wall Street Journal, New York Times, and Washington Post. He has testified before Congress a dozen times, and his work has been cited in the U.S. Supreme Court. A 2024 study identified Professor Adler as the seventh most cited legal academic in administrative and environmental law from 2019 to 2023.
Professor Adler is a contributing editor to Civitas Outlook and a regular contributor to the popular legal blog, The Volokh Conspiracy. A regular commentator on constitutional and regulatory issues, he has appeared on numerous radio and television programs, ranging from the PBS Newshour and National Public Radio to the Fox News Channel and Entertainment Tonight.
Professor Adler is a senior fellow at the Property & Environment Research Center in Bozeman, Montana. In 2018, Professor Adler was elected to membership in the American Law Institute and helped co-found the organization Checks and Balances. In 2024, Professor Adler was appointed a public member of the Administrative Conference of the United States.
Professor Adler clerked for the Honorable David B. Sentelle on the U.S. Court of Appeals for the District of Columbia Circuit.
Assistant Attorney General, Environment and Natural Resources Division, U.S. Department of Justice
Jeffrey Bossert Clark was born in Philadelphia, Pennsylvania on April 17, 1967. He is a graduate of Harvard University (A.B. in economics and history, 1989), the University of Delaware (M.A. in urban affairs and public policy, 1993), and the Georgetown University Law Center (J.D., 1995).
Mr. Clark began his career working for the State of Delaware’s Department of Finance, Division of Revenue as an economics analyst in the field of tax policy. During his tenure from 1989 to 1992, he authored several white papers analyzing Delaware revenue sources. Delaware also selected Mr. Clark to submit an economic report and affidavit to the United States Supreme Court in the original jurisdiction case of Delaware v. New York, 507 U.S. 490 (1993).
He entered Georgetown’s law school in 1992 where he earned honors as an articles editor of the Georgetown Law Journal, an Olin Law & Economics Fellow, and a member of the Order of the Coif. From 1995 to 1996, Mr. Clark clerked for Judge Boggs of the U.S. Court of Appeals of the Sixth Circuit. Mr. Clark then joined the law firm of Kirkland & Ellis as an associate from 1996-2001. He worked as an appellate litigator on numerous Supreme Court and other appellate cases and developed expertise in administrative law, statutory interpretation, as well as antitrust, labor, environmental, and telecommunications law.
Mr. Clark went on to serve in ENRD from 2001-2005 as a Deputy Assistant Attorney General selected by Attorney General Ashcroft and Assistant Attorney General Tom Sansonetti. In that capacity, he supervised ENRD’s Appellate and Indian Resources Sections. He reviewed, edited, and contributed to virtually every brief that ENRD filed in the Courts of Appeals, including several cases of exceptional significance that he personally briefed and argued. During his service in the early 2000s, Mr. Clark argued and won numerous cases in multiple U.S. Courts of Appeals and worked on all Supreme Court cases arising out of ENRD’s work.
In 2005, Mr. Clark returned to Kirkland & Ellis LLP as a partner, where he litigated until his return to ENRD in 2018. There he worked on numerous multi-billion-dollar matters and continued to argue many appellate cases. His practice operated at all levels — appellate litigation, trial court litigation, agency proceedings, and regulatory and litigation counseling. He has been named a Super Lawyer for multiple years running, highlighted in the Legal 500, named to the “Legal Who’s Who for Environmental Law” in Corporate Responsibility Magazine, rated A.V. preeminent by Martindale Hubbell, and named a member of the National Association of Distinguished Counsel’s Nation’s One Percent. He also was named one of America’s Top 100 High Stakes Litigators.
President Trump nominated Mr. Clark to be the Assistant Attorney General of the Environment and Natural Resources Division (ENRD) on June 7, 2017. He was confirmed by the U.S. Senate on October 11, 2018 and sworn into office on November 1, 2018, followed by an investiture ceremony on November 15, 2018.
Director, Federal Water Policy, Water Division, Nature Program, Natural Resources Defense Council, Inc.
Jon Devine leads NRDC’s clean water solutions team. His work focuses on implementing, defending, and strengthening the core programs under the Clean Water Act. Devine’s areas of expertise include curbing runoff pollution through the development of green infrastructure, increasing the water quality of the Mississippi River Basin by decreasing pollution, and restoring safeguards for streams, wetlands, and other bodies of water. Prior to joining the Water program, he worked with NRDC’s Health & Environment program for four years. Previously, he served as an attorney-adviser in the U.S. Environmental Protection Agency’s Office of General Counsel and also worked as an environmental specialist in Maine’s Department of Environmental Protection. Devine graduated from Bowdoin College and received his JD from Georgetown University. He is based in Washington, D.C.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Andrew Varcoe was formerly a partner at Boyden Gray & Associates in Washington, D.C. From 2014 to 2017, Mr. Varcoe was Deputy General Counsel at the Biotechnology Innovation Organization (BIO), the trade association for the biotechnology industry. He previously served as an attorney in the Office of the General Counsel of the U.S. Department of Agriculture (USDA) in Washington, D.C., and Harrisburg, Pennsylvania. While at USDA, he briefed, argued, and mediated cases in the federal courts of appeals and helped manage USDA’s and its agencies’ nationwide appellate litigation docket, working closely with trial and appellate lawyers at the U.S. Department of Justice. Before joining USDA, Mr. Varcoe was an associate and then counsel at Wilmer Cutler Pickering Hale and Dorr LLP (previously Wilmer, Cutler & Pickering). Mr. Varcoe served as a law clerk to Justice Francis X. Spina of the Massachusetts Supreme Judicial Court (from 1999 to 2000), and to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit (from 2001 to 2002).
Mr. Varcoe received his J.D. cum laude in 1999 from Harvard Law School, where he was a research assistant to Professor Martha Minow and an editor of the Harvard Journal of Law & Public Policy. Mr. Varcoe graduated with honors in 1995 from the University of Chicago, where he was Student Ombudsperson (a mediator, reporting to the President of the University, who investigated and resolved student grievances) and a member of Phi Beta Kappa.
In 2018 and 2019, Mr. Varcoe served as Chairman of the Executive Committee of the Federalist Society’s Environmental Law and Property Rights Practice Group.
Tazewell Taylor Professor of Law and William H. Cabell Research Professor, William & Mary Law School
Jonathan H. Adler joined the William & Mary law faculty as the Tazwell Taylor Professor of Law and William H. Cabell Research Professor in 2025. Prior to joining the faculty, he was the inaugural Johan Verheij Memorial Professor of Law and the founding Director of the Coleman P. Burke Center for Environmental Law at the Case Western Reserve University School of Law.
Professor Adler is the author or editor of seven books, including Climate Liberalism: Perspectives on Liberty, Property and Pollution (Palgrave, 2023), Marijuana Federalism: Uncle Sam and Mary Jane (Brookings Institution Press, 2020), Business and the Roberts Court (Oxford University Press, 2016) and Rebuilding the Ark: New Perspectives on Endangered Species Act Reform (AEI Press, 2011).
His articles have appeared in publications ranging from the Harvard Environmental Law Review and Yale Journal on Regulation to the Wall Street Journal, New York Times, and Washington Post. He has testified before Congress a dozen times, and his work has been cited in the U.S. Supreme Court. A 2024 study identified Professor Adler as the seventh most cited legal academic in administrative and environmental law from 2019 to 2023.
Professor Adler is a contributing editor to Civitas Outlook and a regular contributor to the popular legal blog, The Volokh Conspiracy. A regular commentator on constitutional and regulatory issues, he has appeared on numerous radio and television programs, ranging from the PBS Newshour and National Public Radio to the Fox News Channel and Entertainment Tonight.
Professor Adler is a senior fellow at the Property & Environment Research Center in Bozeman, Montana. In 2018, Professor Adler was elected to membership in the American Law Institute and helped co-found the organization Checks and Balances. In 2024, Professor Adler was appointed a public member of the Administrative Conference of the United States.
Professor Adler clerked for the Honorable David B. Sentelle on the U.S. Court of Appeals for the District of Columbia Circuit.
Assistant Attorney General, Environment and Natural Resources Division, U.S. Department of Justice
Jeffrey Bossert Clark was born in Philadelphia, Pennsylvania on April 17, 1967. He is a graduate of Harvard University (A.B. in economics and history, 1989), the University of Delaware (M.A. in urban affairs and public policy, 1993), and the Georgetown University Law Center (J.D., 1995).
Mr. Clark began his career working for the State of Delaware’s Department of Finance, Division of Revenue as an economics analyst in the field of tax policy. During his tenure from 1989 to 1992, he authored several white papers analyzing Delaware revenue sources. Delaware also selected Mr. Clark to submit an economic report and affidavit to the United States Supreme Court in the original jurisdiction case of Delaware v. New York, 507 U.S. 490 (1993).
He entered Georgetown’s law school in 1992 where he earned honors as an articles editor of the Georgetown Law Journal, an Olin Law & Economics Fellow, and a member of the Order of the Coif. From 1995 to 1996, Mr. Clark clerked for Judge Boggs of the U.S. Court of Appeals of the Sixth Circuit. Mr. Clark then joined the law firm of Kirkland & Ellis as an associate from 1996-2001. He worked as an appellate litigator on numerous Supreme Court and other appellate cases and developed expertise in administrative law, statutory interpretation, as well as antitrust, labor, environmental, and telecommunications law.
Mr. Clark went on to serve in ENRD from 2001-2005 as a Deputy Assistant Attorney General selected by Attorney General Ashcroft and Assistant Attorney General Tom Sansonetti. In that capacity, he supervised ENRD’s Appellate and Indian Resources Sections. He reviewed, edited, and contributed to virtually every brief that ENRD filed in the Courts of Appeals, including several cases of exceptional significance that he personally briefed and argued. During his service in the early 2000s, Mr. Clark argued and won numerous cases in multiple U.S. Courts of Appeals and worked on all Supreme Court cases arising out of ENRD’s work.
In 2005, Mr. Clark returned to Kirkland & Ellis LLP as a partner, where he litigated until his return to ENRD in 2018. There he worked on numerous multi-billion-dollar matters and continued to argue many appellate cases. His practice operated at all levels — appellate litigation, trial court litigation, agency proceedings, and regulatory and litigation counseling. He has been named a Super Lawyer for multiple years running, highlighted in the Legal 500, named to the “Legal Who’s Who for Environmental Law” in Corporate Responsibility Magazine, rated A.V. preeminent by Martindale Hubbell, and named a member of the National Association of Distinguished Counsel’s Nation’s One Percent. He also was named one of America’s Top 100 High Stakes Litigators.
President Trump nominated Mr. Clark to be the Assistant Attorney General of the Environment and Natural Resources Division (ENRD) on June 7, 2017. He was confirmed by the U.S. Senate on October 11, 2018 and sworn into office on November 1, 2018, followed by an investiture ceremony on November 15, 2018.
Director, Federal Water Policy, Water Division, Nature Program, Natural Resources Defense Council, Inc.
Jon Devine leads NRDC’s clean water solutions team. His work focuses on implementing, defending, and strengthening the core programs under the Clean Water Act. Devine’s areas of expertise include curbing runoff pollution through the development of green infrastructure, increasing the water quality of the Mississippi River Basin by decreasing pollution, and restoring safeguards for streams, wetlands, and other bodies of water. Prior to joining the Water program, he worked with NRDC’s Health & Environment program for four years. Previously, he served as an attorney-adviser in the U.S. Environmental Protection Agency’s Office of General Counsel and also worked as an environmental specialist in Maine’s Department of Environmental Protection. Devine graduated from Bowdoin College and received his JD from Georgetown University. He is based in Washington, D.C.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Andrew Varcoe was formerly a partner at Boyden Gray & Associates in Washington, D.C. From 2014 to 2017, Mr. Varcoe was Deputy General Counsel at the Biotechnology Innovation Organization (BIO), the trade association for the biotechnology industry. He previously served as an attorney in the Office of the General Counsel of the U.S. Department of Agriculture (USDA) in Washington, D.C., and Harrisburg, Pennsylvania. While at USDA, he briefed, argued, and mediated cases in the federal courts of appeals and helped manage USDA’s and its agencies’ nationwide appellate litigation docket, working closely with trial and appellate lawyers at the U.S. Department of Justice. Before joining USDA, Mr. Varcoe was an associate and then counsel at Wilmer Cutler Pickering Hale and Dorr LLP (previously Wilmer, Cutler & Pickering). Mr. Varcoe served as a law clerk to Justice Francis X. Spina of the Massachusetts Supreme Judicial Court (from 1999 to 2000), and to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit (from 2001 to 2002).
Mr. Varcoe received his J.D. cum laude in 1999 from Harvard Law School, where he was a research assistant to Professor Martha Minow and an editor of the Harvard Journal of Law & Public Policy. Mr. Varcoe graduated with honors in 1995 from the University of Chicago, where he was Student Ombudsperson (a mediator, reporting to the President of the University, who investigated and resolved student grievances) and a member of Phi Beta Kappa.
In 2018 and 2019, Mr. Varcoe served as Chairman of the Executive Committee of the Federalist Society’s Environmental Law and Property Rights Practice Group.
Laurence H. Silberman Chair in Constitutional Governance, American Enterprise Institute; Executive Director, Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State
Adam J. White is the Laurence H. Silberman Chair in Constitutional Governance and senior fellow at the American Enterprise Institute, where he focuses on the Supreme Court and the administrative state. He also directs the Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State.
He writes on regulation and constitutional government for a variety of publications. He practiced law in Washington, D.C., after clerking for the D.C. Circuit's Judge David Sentelle. He also has been chairman of the ABA's Administrative Law Section.
In 2021, he served on the Presidential Commission on the Supreme Court of the United States, where he criticized “Court packing” and other efforts to restructure the Supreme Court.
Deputy Secretary of Transportation, US Department of Transportation
Steven G. Bradbury was sworn in as the Deputy Secretary of Transportation on March 13, 2025, following his confirmation by the U.S. Senate on March 11, 2025. In this role, he oversees the Department’s operating administrations and spearheads initiatives to ensure a safe, efficient, and modern transportation system that strengthens economic productivity and global competitiveness. Deputy Secretary Bradbury also assists Secretary Duffy in managing the Department’s activities, including its workforce of over 58,000 employees and an annual budget exceeding $109 billion.
Bradbury previously served as the 23rd General Counsel of the Department of Transportation from 2017 to 2021, as the Acting Deputy Secretary from 2019, and as Acting Secretary of Transportation in 2021. As General Counsel, he was the chief legal officer, advising on all legal matters and ensuring the integrity and compliance of the Department’s policies and programs.
Before rejoining DOT, Bradbury was a Distinguished Fellow at The Heritage Foundation from December 2022 to March 2025. He has extensive experience in the public and private sector, having served as Principal Deputy and Acting Assistant Attorney General at the U.S. Department of Justice and as a partner at Kirkland & Ellis LLP and Dechert LLP. Earlier in his career, he clerked for Justice Clarence Thomas and Judge James L. Buckley.
Bradbury holds a J.D., magna cum laude, from the University of Michigan Law School and a B.A. in English from Stanford University.
Partner, Baker Botts
George Fibbe represents clients in complex commercial disputes and regulatory matters, focusing on high-stakes matters across the energy sector. Before joining Baker Botts, he served as the Deputy General Counsel for Litigation, Regulation & Enforcement for the U.S. Department of Energy. Mr. Fibbe is a commercial trial attorney who practiced with Yetter Coleman, LLP in Houston for over ten years. He then served as head of litigation for the petroleum division of an international mining corporation. Before joining the Department of Energy, he served as General Counsel for a private solar company.
Deputy Secretary of Agriculture, U.S. Department of Agriculture
Judge Stephen Alexander Vaden was appointed as the Deputy Secretary of the U.S. Department of Agriculture on July 7, 2025. Alongside Secretary Brooke L. Rollins, Deputy Secretary Vaden leads the Department’s operations and implements policies that support America’s food and farm systems. A native of Union City, Tennessee, Deputy Secretary Vaden brings expertise in agricultural policy, law, and rural development. Previously, he served as a judge on the U.S. Court of International Trade and as General Counsel of USDA. Throughout Deputy Secretary Vaden’s time as General Counsel, he led successful Supreme Court litigation, advanced regulatory reform, and supported the implementation of the 2018 Farm Bill. He is a graduate of Yale Law School and Vanderbilt University. A public servant with strong agricultural roots, Deputy Secretary Vaden is committed to revitalizing rural America and ensuring an abundant, affordable, and safe U.S. food supply.
General Counsel and Corporate Secretary, Citigroup
Brent McIntosh joined Citi as General Counsel and Corporate Secretary in October 2021. Brent leads Citi's global legal team, including Citi security and investigative services, and oversees Citi’s independent compliance risk management function.
Brent served as Under Secretary of the Treasury for International Affairs from 2019 to 2021. He led the Treasury Department’s engagement in the G7 and G20, represented the United States on the Financial Stability Board, and managed U.S. participation at the IMF and World Bank. He oversaw Treasury’s international economic and financial policy work, including significant engagements on investment security and regulation of digital currencies. During 2020, he coordinated initiatives to alleviate the COVID-19 pandemic’s economic consequences.
From 2017 to 2019, Brent served as Treasury’s General Counsel, leading the department’s approximately 2,000 lawyers and spearheading its regulatory reform efforts. Prior to that, he was a partner in the law firm of Sullivan & Cromwell, where his practice focused on complex disputes involving financial institutions and multinational corporations.
Brent served in the White House from 2006 until 2009, first as Associate Counsel to the President and then as Deputy Assistant to the President and Deputy Staff Secretary. Before that, he was a Deputy Assistant Attorney General at the Justice Department, where his work focused on national security matters.
A Michigan native, Brent holds an A.B. in economics and political science from the University of Michigan and a J.D. from Yale Law School. Following law school, he was a law clerk to two federal appellate judges, Dennis Jacobs of the Second Circuit and Laurence H. Silberman of the D.C. Circuit. Brent serves on the Board of Directors of the Alexander Hamilton Society, the Board of Advisors for the National Security Institute at George Mason University’s Antonin Scalia Law School, and the Advisory Council of the Official Monetary and Financial Institutions Forum. He is a member of the Council on Foreign Relations, where he previously served as an Adjunct Senior Fellow for International Economics and Finance, as well as the Bretton Woods Committee and the International Institute for Strategic Studies.
Partner, Hunton Andrews Kurth
Mr. Leopold is a Partner with the law firm of Hunton Andrews Kurth in Washington, DC. He is the former Senate-confirmed general counsel of the U.S. EPA from 2018-2020, and he previously was a litigator at the U.S. Department of Justice, Environment and Natural Resources Division form 2007-2013. As EPA General Counsel, he counseled on the development and defense of EPA’s most significant rulemakings, including the Affordable Clean Energy Rule, the Navigable Waters Protection Rule, and the Safe Affordable Fuel‐Efficient (SAFE) Vehicles Rule, as well as several pesticide actions. He was personally involved in defending EPA in litigation, including the County of Maui v. Hawaii Wildlife Fund in the U.S. Supreme Court. Mr. Leopold’s prior government service also includes working in Florida as general counsel of the Florida Department of Environmental Protection. He now represents clients in regulatory advocacy before federal agencies, litigates federal environmental actions, and defends clients with EPA enforcement issues.
Executive Vice President, The Federalist Society
Dean Reuter is Executive Vice President at the Federalist Society for Law and Public Policy Studies. He has served in two federal government agency Offices of the Inspector General, as Counsel to the Inspector General and Deputy Inspector General, responsible for policing the use of federal funds granted and contracted through those agencies. As such, he helped conduct and oversee criminal investigations across the country. He is the principal author of the non-fiction book, The Hidden Nazi: The Untold Story of America's Deal with the Devil, and editor of Liberty’s Nemesis: The Unchecked Expansion of the State and Confronting Terror: 9/11 and the Future of American National Security. He was appointed by the President and served as Vice-Chairman of the Board of Directors of the Corporation for National and Community Service, and recently served as an appointee on the U.S. Commission on Presidential Scholars. He is a graduate of Hood College (BA with Honors) and the University of Maryland School of Law.
Deputy Secretary of Transportation, US Department of Transportation
Steven G. Bradbury was sworn in as the Deputy Secretary of Transportation on March 13, 2025, following his confirmation by the U.S. Senate on March 11, 2025. In this role, he oversees the Department’s operating administrations and spearheads initiatives to ensure a safe, efficient, and modern transportation system that strengthens economic productivity and global competitiveness. Deputy Secretary Bradbury also assists Secretary Duffy in managing the Department’s activities, including its workforce of over 58,000 employees and an annual budget exceeding $109 billion.
Bradbury previously served as the 23rd General Counsel of the Department of Transportation from 2017 to 2021, as the Acting Deputy Secretary from 2019, and as Acting Secretary of Transportation in 2021. As General Counsel, he was the chief legal officer, advising on all legal matters and ensuring the integrity and compliance of the Department’s policies and programs.
Before rejoining DOT, Bradbury was a Distinguished Fellow at The Heritage Foundation from December 2022 to March 2025. He has extensive experience in the public and private sector, having served as Principal Deputy and Acting Assistant Attorney General at the U.S. Department of Justice and as a partner at Kirkland & Ellis LLP and Dechert LLP. Earlier in his career, he clerked for Justice Clarence Thomas and Judge James L. Buckley.
Bradbury holds a J.D., magna cum laude, from the University of Michigan Law School and a B.A. in English from Stanford University.
Partner, Baker Botts
George Fibbe represents clients in complex commercial disputes and regulatory matters, focusing on high-stakes matters across the energy sector. Before joining Baker Botts, he served as the Deputy General Counsel for Litigation, Regulation & Enforcement for the U.S. Department of Energy. Mr. Fibbe is a commercial trial attorney who practiced with Yetter Coleman, LLP in Houston for over ten years. He then served as head of litigation for the petroleum division of an international mining corporation. Before joining the Department of Energy, he served as General Counsel for a private solar company.
Partner, Hunton Andrews Kurth
Mr. Leopold is a Partner with the law firm of Hunton Andrews Kurth in Washington, DC. He is the former Senate-confirmed general counsel of the U.S. EPA from 2018-2020, and he previously was a litigator at the U.S. Department of Justice, Environment and Natural Resources Division form 2007-2013. As EPA General Counsel, he counseled on the development and defense of EPA’s most significant rulemakings, including the Affordable Clean Energy Rule, the Navigable Waters Protection Rule, and the Safe Affordable Fuel‐Efficient (SAFE) Vehicles Rule, as well as several pesticide actions. He was personally involved in defending EPA in litigation, including the County of Maui v. Hawaii Wildlife Fund in the U.S. Supreme Court. Mr. Leopold’s prior government service also includes working in Florida as general counsel of the Florida Department of Environmental Protection. He now represents clients in regulatory advocacy before federal agencies, litigates federal environmental actions, and defends clients with EPA enforcement issues.
General Counsel and Corporate Secretary, Citigroup
Brent McIntosh joined Citi as General Counsel and Corporate Secretary in October 2021. Brent leads Citi's global legal team, including Citi security and investigative services, and oversees Citi’s independent compliance risk management function.
Brent served as Under Secretary of the Treasury for International Affairs from 2019 to 2021. He led the Treasury Department’s engagement in the G7 and G20, represented the United States on the Financial Stability Board, and managed U.S. participation at the IMF and World Bank. He oversaw Treasury’s international economic and financial policy work, including significant engagements on investment security and regulation of digital currencies. During 2020, he coordinated initiatives to alleviate the COVID-19 pandemic’s economic consequences.
From 2017 to 2019, Brent served as Treasury’s General Counsel, leading the department’s approximately 2,000 lawyers and spearheading its regulatory reform efforts. Prior to that, he was a partner in the law firm of Sullivan & Cromwell, where his practice focused on complex disputes involving financial institutions and multinational corporations.
Brent served in the White House from 2006 until 2009, first as Associate Counsel to the President and then as Deputy Assistant to the President and Deputy Staff Secretary. Before that, he was a Deputy Assistant Attorney General at the Justice Department, where his work focused on national security matters.
A Michigan native, Brent holds an A.B. in economics and political science from the University of Michigan and a J.D. from Yale Law School. Following law school, he was a law clerk to two federal appellate judges, Dennis Jacobs of the Second Circuit and Laurence H. Silberman of the D.C. Circuit. Brent serves on the Board of Directors of the Alexander Hamilton Society, the Board of Advisors for the National Security Institute at George Mason University’s Antonin Scalia Law School, and the Advisory Council of the Official Monetary and Financial Institutions Forum. He is a member of the Council on Foreign Relations, where he previously served as an Adjunct Senior Fellow for International Economics and Finance, as well as the Bretton Woods Committee and the International Institute for Strategic Studies.
Deputy Secretary of Agriculture, U.S. Department of Agriculture
Judge Stephen Alexander Vaden was appointed as the Deputy Secretary of the U.S. Department of Agriculture on July 7, 2025. Alongside Secretary Brooke L. Rollins, Deputy Secretary Vaden leads the Department’s operations and implements policies that support America’s food and farm systems. A native of Union City, Tennessee, Deputy Secretary Vaden brings expertise in agricultural policy, law, and rural development. Previously, he served as a judge on the U.S. Court of International Trade and as General Counsel of USDA. Throughout Deputy Secretary Vaden’s time as General Counsel, he led successful Supreme Court litigation, advanced regulatory reform, and supported the implementation of the 2018 Farm Bill. He is a graduate of Yale Law School and Vanderbilt University. A public servant with strong agricultural roots, Deputy Secretary Vaden is committed to revitalizing rural America and ensuring an abundant, affordable, and safe U.S. food supply.
Laurence H. Silberman Chair in Constitutional Governance, American Enterprise Institute; Executive Director, Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State
Adam J. White is the Laurence H. Silberman Chair in Constitutional Governance and senior fellow at the American Enterprise Institute, where he focuses on the Supreme Court and the administrative state. He also directs the Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State.
He writes on regulation and constitutional government for a variety of publications. He practiced law in Washington, D.C., after clerking for the D.C. Circuit's Judge David Sentelle. He also has been chairman of the ABA's Administrative Law Section.
In 2021, he served on the Presidential Commission on the Supreme Court of the United States, where he criticized “Court packing” and other efforts to restructure the Supreme Court.
Executive Vice President, The Federalist Society
Dean Reuter is Executive Vice President at the Federalist Society for Law and Public Policy Studies. He has served in two federal government agency Offices of the Inspector General, as Counsel to the Inspector General and Deputy Inspector General, responsible for policing the use of federal funds granted and contracted through those agencies. As such, he helped conduct and oversee criminal investigations across the country. He is the principal author of the non-fiction book, The Hidden Nazi: The Untold Story of America's Deal with the Devil, and editor of Liberty’s Nemesis: The Unchecked Expansion of the State and Confronting Terror: 9/11 and the Future of American National Security. He was appointed by the President and served as Vice-Chairman of the Board of Directors of the Corporation for National and Community Service, and recently served as an appointee on the U.S. Commission on Presidential Scholars. He is a graduate of Hood College (BA with Honors) and the University of Maryland School of Law.
Deputy Secretary of Transportation, US Department of Transportation
Steven G. Bradbury was sworn in as the Deputy Secretary of Transportation on March 13, 2025, following his confirmation by the U.S. Senate on March 11, 2025. In this role, he oversees the Department’s operating administrations and spearheads initiatives to ensure a safe, efficient, and modern transportation system that strengthens economic productivity and global competitiveness. Deputy Secretary Bradbury also assists Secretary Duffy in managing the Department’s activities, including its workforce of over 58,000 employees and an annual budget exceeding $109 billion.
Bradbury previously served as the 23rd General Counsel of the Department of Transportation from 2017 to 2021, as the Acting Deputy Secretary from 2019, and as Acting Secretary of Transportation in 2021. As General Counsel, he was the chief legal officer, advising on all legal matters and ensuring the integrity and compliance of the Department’s policies and programs.
Before rejoining DOT, Bradbury was a Distinguished Fellow at The Heritage Foundation from December 2022 to March 2025. He has extensive experience in the public and private sector, having served as Principal Deputy and Acting Assistant Attorney General at the U.S. Department of Justice and as a partner at Kirkland & Ellis LLP and Dechert LLP. Earlier in his career, he clerked for Justice Clarence Thomas and Judge James L. Buckley.
Bradbury holds a J.D., magna cum laude, from the University of Michigan Law School and a B.A. in English from Stanford University.
Partner, Baker Botts
George Fibbe represents clients in complex commercial disputes and regulatory matters, focusing on high-stakes matters across the energy sector. Before joining Baker Botts, he served as the Deputy General Counsel for Litigation, Regulation & Enforcement for the U.S. Department of Energy. Mr. Fibbe is a commercial trial attorney who practiced with Yetter Coleman, LLP in Houston for over ten years. He then served as head of litigation for the petroleum division of an international mining corporation. Before joining the Department of Energy, he served as General Counsel for a private solar company.
Partner, Hunton Andrews Kurth
Mr. Leopold is a Partner with the law firm of Hunton Andrews Kurth in Washington, DC. He is the former Senate-confirmed general counsel of the U.S. EPA from 2018-2020, and he previously was a litigator at the U.S. Department of Justice, Environment and Natural Resources Division form 2007-2013. As EPA General Counsel, he counseled on the development and defense of EPA’s most significant rulemakings, including the Affordable Clean Energy Rule, the Navigable Waters Protection Rule, and the Safe Affordable Fuel‐Efficient (SAFE) Vehicles Rule, as well as several pesticide actions. He was personally involved in defending EPA in litigation, including the County of Maui v. Hawaii Wildlife Fund in the U.S. Supreme Court. Mr. Leopold’s prior government service also includes working in Florida as general counsel of the Florida Department of Environmental Protection. He now represents clients in regulatory advocacy before federal agencies, litigates federal environmental actions, and defends clients with EPA enforcement issues.
General Counsel and Corporate Secretary, Citigroup
Brent McIntosh joined Citi as General Counsel and Corporate Secretary in October 2021. Brent leads Citi's global legal team, including Citi security and investigative services, and oversees Citi’s independent compliance risk management function.
Brent served as Under Secretary of the Treasury for International Affairs from 2019 to 2021. He led the Treasury Department’s engagement in the G7 and G20, represented the United States on the Financial Stability Board, and managed U.S. participation at the IMF and World Bank. He oversaw Treasury’s international economic and financial policy work, including significant engagements on investment security and regulation of digital currencies. During 2020, he coordinated initiatives to alleviate the COVID-19 pandemic’s economic consequences.
From 2017 to 2019, Brent served as Treasury’s General Counsel, leading the department’s approximately 2,000 lawyers and spearheading its regulatory reform efforts. Prior to that, he was a partner in the law firm of Sullivan & Cromwell, where his practice focused on complex disputes involving financial institutions and multinational corporations.
Brent served in the White House from 2006 until 2009, first as Associate Counsel to the President and then as Deputy Assistant to the President and Deputy Staff Secretary. Before that, he was a Deputy Assistant Attorney General at the Justice Department, where his work focused on national security matters.
A Michigan native, Brent holds an A.B. in economics and political science from the University of Michigan and a J.D. from Yale Law School. Following law school, he was a law clerk to two federal appellate judges, Dennis Jacobs of the Second Circuit and Laurence H. Silberman of the D.C. Circuit. Brent serves on the Board of Directors of the Alexander Hamilton Society, the Board of Advisors for the National Security Institute at George Mason University’s Antonin Scalia Law School, and the Advisory Council of the Official Monetary and Financial Institutions Forum. He is a member of the Council on Foreign Relations, where he previously served as an Adjunct Senior Fellow for International Economics and Finance, as well as the Bretton Woods Committee and the International Institute for Strategic Studies.
Executive Vice President, The Federalist Society
Dean Reuter is Executive Vice President at the Federalist Society for Law and Public Policy Studies. He has served in two federal government agency Offices of the Inspector General, as Counsel to the Inspector General and Deputy Inspector General, responsible for policing the use of federal funds granted and contracted through those agencies. As such, he helped conduct and oversee criminal investigations across the country. He is the principal author of the non-fiction book, The Hidden Nazi: The Untold Story of America's Deal with the Devil, and editor of Liberty’s Nemesis: The Unchecked Expansion of the State and Confronting Terror: 9/11 and the Future of American National Security. He was appointed by the President and served as Vice-Chairman of the Board of Directors of the Corporation for National and Community Service, and recently served as an appointee on the U.S. Commission on Presidential Scholars. He is a graduate of Hood College (BA with Honors) and the University of Maryland School of Law.
Deputy Secretary of Agriculture, U.S. Department of Agriculture
Judge Stephen Alexander Vaden was appointed as the Deputy Secretary of the U.S. Department of Agriculture on July 7, 2025. Alongside Secretary Brooke L. Rollins, Deputy Secretary Vaden leads the Department’s operations and implements policies that support America’s food and farm systems. A native of Union City, Tennessee, Deputy Secretary Vaden brings expertise in agricultural policy, law, and rural development. Previously, he served as a judge on the U.S. Court of International Trade and as General Counsel of USDA. Throughout Deputy Secretary Vaden’s time as General Counsel, he led successful Supreme Court litigation, advanced regulatory reform, and supported the implementation of the 2018 Farm Bill. He is a graduate of Yale Law School and Vanderbilt University. A public servant with strong agricultural roots, Deputy Secretary Vaden is committed to revitalizing rural America and ensuring an abundant, affordable, and safe U.S. food supply.
Laurence H. Silberman Chair in Constitutional Governance, American Enterprise Institute; Executive Director, Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State
Adam J. White is the Laurence H. Silberman Chair in Constitutional Governance and senior fellow at the American Enterprise Institute, where he focuses on the Supreme Court and the administrative state. He also directs the Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State.
He writes on regulation and constitutional government for a variety of publications. He practiced law in Washington, D.C., after clerking for the D.C. Circuit's Judge David Sentelle. He also has been chairman of the ABA's Administrative Law Section.
In 2021, he served on the Presidential Commission on the Supreme Court of the United States, where he criticized “Court packing” and other efforts to restructure the Supreme Court.
University Professor of Law and Executive Director, Liberty & Law Center, Antonin Scalia Law School, George Mason University
David Bernstein holds a University Professorship chair at the Antonin Scalia Law School, where he has been teaching since 1995. He has also been a visiting professor at the University of Michigan, Georgetown University, William & Mary, Brooklyn Law School, the University of Turin, and Hebrew University. Professor Bernstein teaches Constitutional Law, Evidence, and Products Liability.
A prolific author, Professor Bernstein often challenges the conventional wisdom with prodigious research and sharp, original analysis. He is the author of five books, and coauthor of two more. Professor Bernstein’s book Rehabilitating Lochner was praised across the political spectrum as “intellectual history in its highest form,” a “fresh perspective and a cogent analysis,” “delightful and informative,” “sharp and iconoclastic,” and “a terrific work of historical revisionism.” Columnist George Will praised Bernstein’s most recent book, Classified, The Untold Story of Racial Classification in America, as “perhaps the most consequential American book of 2022.”
Professor Bernstein has also written dozens of articles and essays published in major law reviews, including the California Law Review, Columbia Law Review, Michigan Law Review, and Yale Law Journal. An article he coauthored, Defending Daubert: It’s Time to Amend Federal Rule of Evidence 702, directly inspired a pending amendment to Rule 702.
Professor Bernstein blogs at the Instapundit.com, the Times of Israel, and the Volokh Conspiracy. He is a graduate of the Yale Law School, where he was senior editor of the Yale Law Journal and a John M. Olin Fellow in Law, Economics, and Public Policy.
The Affordable Clean Energy (ACE) Rule
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