Associate Deputy Attorney General, United States Department of Justice
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.
Judge, United States District Court, District of Columbia
Judge Trevor N. McFadden was appointed to the United States District Court for the District of Columbia in 2017. He received his B.A. in 2001 from Wheaton College, IL, magna cum laude. In 2006, he received his J.D. from the University of Virginia School of Law, where he graduated Order of the Coif and was an editor for the Virginia Law Review.
Following graduation from law school, Judge McFadden clerked for Judge Steven Colloton, U.S. Court of Appeals for the Eighth Circuit. He then joined the U.S. Department of Justice, where he served as Counsel to the Deputy Attorney General and as Assistant U.S. Attorney in the District of Columbia. Judge McFadden subsequently became a partner at Baker & McKenzie LLP in Washington, DC, where he focused on white collar investigations. He is also co-author of a treatise, Corporate Settlement Tools: DPAs, NPAs, and Cooperation Agreements.
After four years in private practice, Judge McFadden returned to the U.S. Department of Justice, where he was Deputy Assistant Attorney General and acted as the second-in-command of the Department's Criminal Division. As Deputy Assistant Attorney General, he managed the Division's Fraud and Appellate Sections.
Judge McFadden also has extensive experience in law enforcement. He served as an officer with the Fairfax County, VA, Police Department and as a deputy sheriff in Madison County, VA.
Assistant Attorney General, Civil Division, United States Department of Justice
Brett A. Shumate was sworn in as the Civil Division’s 36th Assistant Attorney General on June 11, 2025. He previously served in the Civil Division from 2017 to 2019 as the Deputy Assistant Attorney General for the Federal Programs Branch. Prior to rejoining the Department, Mr. Shumate was a partner at Jones Day in Washington, D.C.
Mr. Shumate clerked for Judge Edith H. Jones on the United States Court of Appeals for the Fifth Circuit. He graduated from Wake Forest University School of Law and Furman University.
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.
Deputy Director, Central Intelligence Agency
Michael Ellis was sworn in as Deputy Director of the Central Intelligence Agency on February 10, 2025. Deputy Director Ellis has held a variety of senior national security positions, including General Counsel of the National Security Agency and Senior Director for Intelligence Programs at the National Security Council.
Deputy Director Ellis previously served in the White House Counsel's Office, providing legal advice on national security and foreign relations. Prior to the White House, he was General Counsel of the U.S. House of Representatives Permanent Select Committee on Intelligence and served as an intelligence officer in the U.S. Navy Reserve.
Before returning to government, Deputy Director Ellis was the General Counsel of Rumble, a publicly traded video sharing platform and cloud services provider.
Deputy Director Ellis is a graduate of Yale Law School and Dartmouth College. Following law school, he served as a clerk to two federal judges. He is a "Jeopardy!" champion.
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, Donahue & Goldberg LLP
Sean H. Donahue's practice is focused on appellate litigation, including environmental cases in federal and state appellate courts, legal counseling, and helping clients communicate effectively to courts, agencies, and other audiences. He is a member of the bars of the District of Columbia and the State of California.
A 1992 graduate of University of Chicago Law School, Sean served as law clerk to Ruth Bader Ginsburg, then of the U.S. Court of Appeals for the D.C. Circuit, and to Justice John Paul Stevens. He entered private practice at Jenner & Block's Washington office, where he worked on civil matters including in telecommunications and First Amendment law. He then spent four years at the Department of Justice, Environmental and Natural Resources Division, Appellate Section, briefing and arguing cases in the United States Courts of Appeals, and state supreme courts concerning federal environmental and natural resources law, federal property law, takings, and Indian law.
Sean has argued approximately 50 cases in federal and state appellate courts. Since first establishing his own practice in 2002, he has represented environmental and public health organization parties in numerous major environmental and clean energy cases in the Supreme Court and the courts of appeals. His current practice includes representation of public interest organizations, governmental bodies, and private entities in environmental, energy, natural resources, and other cases. Sean has taught courses in environmental law, civil procedure, constitutional law and other subjects at Washington & Lee University School of Law, Iowa College of Law, and Georgetown University Law Center, and currently teaches climate change law and policy as a lecturer at Stanford Law School. He has given presentations at law schools including Berkeley, Columbia, Fordham, Harvard, Duke, Georgetown, Maryland, NYU, Northwestern, Stanford, University of Chicago, University of Florida, Vermont Law School, and Washington & Lee.
Judge, United States Court of Appeals, District of Columbia Circuit
Judge Katsas was appointed to the D.C. Circuit in December 2017. He graduated from Princeton University and Harvard Law School, where he was an executive editor on the Harvard Law Review. Between 1989 and 1992, he served as a law clerk to Judge Edward Becker on the Third Circuit, to then-Judge Clarence Thomas on the D.C. Circuit, and to Justice Thomas on the Supreme Court. Between 1992 and 2001, he was an associate and then partner in the Washington office of Jones Day, where he specialized in appellate and complex civil litigation. Between 2001 and 2009, he served in many senior positions in the Department of Justice, including as Assistant Attorney General for the Civil Division and as Acting Associate Attorney General. In 2009, he returned to Jones Day. From January to December 2017, he served as Deputy Assistant to the President and Deputy Counsel to the President.
Before joining the bench, Judge Katsas argued more than 75 appeals, including three cases in the Supreme Court, 13 cases in the D.C. Circuit, and cases in every other federal court of appeals. By appointment of the Chief Justice, he served on the Advisory Committee on Appellate Rules from 2013 to 2017. In 2016, he was elected to membership in the American Academy of Appellate Lawyers.
Chief Deputy Attorney General
Ryan Newman is currently Chief Deputy Attorney General for Florida Office of the Attorney General.
During the first Trump Administration, he served as Counselor to the United States Attorney General for national security and international affairs, Deputy General Counsel (Legal Counsel) for the Department of Defense, and Acting Assistant Attorney General for the Office of Legal Policy at the Department of Justice. Prior to serving in the Executive Branch, Ryan was Chief Counsel to United States Senator Ted Cruz during the 114th Congress.
Ryan served as a law clerk to the Honorable Samuel A. Alito, Jr. on the United States Supreme Court, the Honorable Richard J. Leon on the United States District Court for the District of Columbia, and the Honorable J.L. Edmondson on the United States Court of Appeals for the Eleventh Circuit.
Prior to law school, Ryan was an armor officer in the United States Army assigned to the 1st Squadron, 10th U.S. Cavalry Regiment (Buffalo Soldiers). He deployed to Iraq in 2003 for Operation Iraqi Freedom.
Ryan graduated from the United States Military Academy at West Point in 1998. He earned his law degree with high honors from The University of Texas School of Law in 2007.
Partner, Sidley Austin LLP
JUSTIN SAVAGE is a global co-leader of the firm’s Environmental, Health, and Safety practice and co-leads the Automotive and Mobility sector team, where he is a leading strategist for companies navigating the intersection of complex regulation, high-stakes litigation, and transformative industry change. For nearly three decades, he has led clients through their most consequential environmental, health, and safety (EH&S) disputes and mobility-sector challenges, earning a reputation as both a trusted counselor and a forceful advocate in the courtroom and the boardroom. A core part of Justin’s practice also focuses on regulatory strategy and market entry, advising emerging technology companies, new market entrants, and established industry leaders on launching new products, technologies, and business models. He regularly counsel clients in emerging fields such as robotics and AI on engaging with regulators, anticipating enforcement and compliance risk, and building defensible regulatory strategies that support growth rather than slow it.
Clients praise Justin as “an excellent litigator… strategically clever and creative… attentive, thoughtful and willing to go above and beyond” (Chambers USA 2025). Chambers USA has ranked him for Band 1 for Environment in District of Columbia (2017–2025) and Band 3 for Transportation: Road (Automotive) in USA—Nationwide (2023–2025).
Justin has won some of the most closely watched EH&S and transportation disputes of the past two decades and guided companies through crises where business continuity, brand reputation, and regulatory survival were on the line. His leadership has been repeatedly recognized: he is a three-time Law360 Environmental “MVP” (2018, 2024, 2025) and a Lawdragon “500 Global Leaders in Crisis Management” (2025-2026). He is the first call for companies facing bet-the-company challenges.
Justin’s clients concentrate in heavily regulated industries, including auto and mobility, aviation, chemicals, data centers, energy, mining, and refining. Justin litigates and counsels across the spectrum of U.S. environmental, transportation, and administrative laws, including the Clean Air Act (Title I, mobile sources, and fuels), incident response, RMP, NHTSA, Clean Water Act, TSCA, CSB investigations, APA claims, FOIA litigation, NEPA, and the Safe Drinking Water Act.
Prior to joining Sidley, Justin served for nearly a decade at the Environmental Enforcement Section of the U.S. Department of Justice, where he led teams in several multi-billion dollar enforcement cases. In his career, Justin has regularly taught on a range of environmental and litigation topics. For several years, Justin served as an instructor at the Justice Department’s National Advocacy Center where he taught hundreds of Assistant U.S. Attorneys and other agency lawyers on topics that included trial advocacy and evidence. Since rejoining private practice, Justin has served eight times as a faculty member for the American Law Institute’s Environmental Litigation program. He also lectured on a range of litigation and trial topics for bar associations and organizations, including serving as an instructor for the FAA on trial advocacy.
Laurence H. Silberman Chair in Constitutional Governance and Senior Fellow, American Enterprise Institute; Co-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. Concurrently, he codirects the Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State.
Mr. White practiced constitutional and administrative law, particularly in the regulation of energy and financial markets. He started his legal career as a law clerk for Judge David B. Sentelle at the US Court of Appeals for the DC Circuit.
Mr. White has written for the Wall Street Journal, the New York Times, the Washington Post, National Affairs, Commentary, Harvard Journal of Law & Public Policy, and Notre Dame Law Review, among other publications. He is a regular contributor to the Yale Journal on Regulation’s Notice and Comment blog, and for many years, he was one of the Weekly Standard’s lead writers on constitutional law and the Supreme Court.
Mr. White has testified often before Congress, including before the Senate’s Committees on the Judiciary; Commerce, Science, and Transportation; and Homeland Security and Governmental Affairs and before the House’s Judiciary and Financial Services Committees. In 2018, the Senate Committee on the Judiciary called him to testify in Brett Kavanaugh’s Supreme Court confirmation hearings to advise senators on Kavanaugh’s approach to administrative law.
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. In 2017, he was appointed to serve on the Administrative Conference of the United States. He also serves on the leadership council for the American Bar Association’s Administrative Law and Regulatory Practice Section, which he will chair in 2023–24. Before joining AEI, he was a research fellow at Stanford University’s Hoover Institution and an adjunct fellow at the Manhattan Institute.
Mr. White has a JD from Harvard Law School and a bachelor of business administration from the College of Business at the University of Iowa.
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.
Associate Deputy Attorney General, United States Department of Justice
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.
Deputy Director, Central Intelligence Agency
Michael Ellis was sworn in as Deputy Director of the Central Intelligence Agency on February 10, 2025. Deputy Director Ellis has held a variety of senior national security positions, including General Counsel of the National Security Agency and Senior Director for Intelligence Programs at the National Security Council.
Deputy Director Ellis previously served in the White House Counsel's Office, providing legal advice on national security and foreign relations. Prior to the White House, he was General Counsel of the U.S. House of Representatives Permanent Select Committee on Intelligence and served as an intelligence officer in the U.S. Navy Reserve.
Before returning to government, Deputy Director Ellis was the General Counsel of Rumble, a publicly traded video sharing platform and cloud services provider.
Deputy Director Ellis is a graduate of Yale Law School and Dartmouth College. Following law school, he served as a clerk to two federal judges. He is a "Jeopardy!" champion.
Judge, United States District Court, District of Columbia
Judge Trevor N. McFadden was appointed to the United States District Court for the District of Columbia in 2017. He received his B.A. in 2001 from Wheaton College, IL, magna cum laude. In 2006, he received his J.D. from the University of Virginia School of Law, where he graduated Order of the Coif and was an editor for the Virginia Law Review.
Following graduation from law school, Judge McFadden clerked for Judge Steven Colloton, U.S. Court of Appeals for the Eighth Circuit. He then joined the U.S. Department of Justice, where he served as Counsel to the Deputy Attorney General and as Assistant U.S. Attorney in the District of Columbia. Judge McFadden subsequently became a partner at Baker & McKenzie LLP in Washington, DC, where he focused on white collar investigations. He is also co-author of a treatise, Corporate Settlement Tools: DPAs, NPAs, and Cooperation Agreements.
After four years in private practice, Judge McFadden returned to the U.S. Department of Justice, where he was Deputy Assistant Attorney General and acted as the second-in-command of the Department's Criminal Division. As Deputy Assistant Attorney General, he managed the Division's Fraud and Appellate Sections.
Judge McFadden also has extensive experience in law enforcement. He served as an officer with the Fairfax County, VA, Police Department and as a deputy sheriff in Madison County, VA.
Assistant Attorney General, Civil Division, United States Department of Justice
Brett A. Shumate was sworn in as the Civil Division’s 36th Assistant Attorney General on June 11, 2025. He previously served in the Civil Division from 2017 to 2019 as the Deputy Assistant Attorney General for the Federal Programs Branch. Prior to rejoining the Department, Mr. Shumate was a partner at Jones Day in Washington, D.C.
Mr. Shumate clerked for Judge Edith H. Jones on the United States Court of Appeals for the Fifth Circuit. He graduated from Wake Forest University School of Law and Furman University.
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.
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.
Director, GW Regulatory Studies Center & Distinguished Professor of Practice, Trachtenberg School of Public Policy & Public Administration, The George Washington University
Susan Dudley is the Founder and Director of the George Washington University Regulatory Studies Center, established in 2009 to raise awareness of regulations’ effects and improve regulatory policy through research, education, and outreach. She is also a distinguished professor of practice in the Trachtenberg School of Public Policy and Public Administration. She is past-president of the Society for Benefit Cost Analysis, a senior fellow of the Administrative Conference of the United States, and on the Regulatory Transparency Project Regulatory Practice Working Group. Her book, Regulation: A Primer, with Jerry Brito, is available on Amazon.com.
From April 2007 through January 2009, Professor Dudley served as the Presidentially-appointed Administrator of the Office of Information and Regulatory Affairs in the U.S. Office of Management and Budget and was responsible for the review of draft executive branch regulations under Executive Order 12866, the collection of federal-government-wide information under the Paperwork Reduction Act, the development and implementation of government-wide policies in the areas of information policy, privacy, and statistical policy, and international regulatory cooperation efforts.
Prior to OIRA, she directed the Regulatory Studies Program at the Mercatus Center at George Mason University, and taught courses on regulation at the George Mason University School of Law. Earlier in her career, Professor Dudley served as an economist at OIRA, as well as the Environmental Protection Agency and the Commodity Futures Trading Commission. She was also a consultant to government and private clients at Economists Incorporated. She holds a Master of Science degree from the Sloan School of Management at MIT and a Bachelor of Science degree (summa cum laude) in Resource Economics from the University of Massachusetts, Amherst.
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.
Policy Fellow, Regulatory Policy, Americans for Prosperity Foundation
Marc Marie is a fellow for regulatory policy at Americans for Prosperity, where he focuses on energy, land use, and the administrative state. Before joining Americans for Prosperity, Marc advised early-stage energy companies on regulatory strategy. His government service includes senior counsel at the Department of Justice, Environment and Natural Resources Division; acting deputy solicitor at the Department of the Interior; and counsel to Sen. Mike Lee on the Senate Judiciary Committee, Antitrust Subcommittee.
He holds a Juris Doctor from the University of Maryland and a bachelor's degree from Kenyon College.
Associate General Counsel, Fannie Mae
Mark Schuman is an in-house corporate governance attorney with Fannie Mae based out of its Washington, DC office. His nearly thirty- year in-house experience includes leadership in employment, public company corporate governance, executive compensation, securities, and capital markets. Mark earned his JD at Yale University in 1991 before clerking for then-Third Circuit Court of Appeals Judge Samuel Alito, Jr. He has been a Federalist Society member since 1988, has served as Secretary of the Society’s New York Lawyers Chapter, and is current on the steering committee for the Society’s In-House Counsel Network.
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.
Litigation Counsel, New Civil Liberties Alliance
Sheng Li is Litigation Counsel for the New Civil Liberties Alliance. Prior to joining NCLA, Sheng served as Counselor to the Administrator of Wage and Hour at the U.S. Department of Labor. In that role, he led numerous efforts to remove or simplify unduly burdensome regulations. He has also worked in the private sector as a litigation associate at Patterson Belknap Webb & Tyler and at Kirkland & Ellis.
Sheng is a graduate of Johns Hopkins University and Yale Law School, where he was managing editor of the Yale Journal of International Law. After graduating law school, Sheng served as law clerk to the Hon. Danny J. Boggs on the U.S. Court of Appeals for the Sixth Circuit.
Board Member, U.S. Privacy and Civil Liberties Oversight Board
Beth A. Williams is a Board Member of the United States Privacy and Civil Liberties Oversight Board, an agency whose mission is to ensure that the federal government's efforts to prevent terrorism are balanced with the need to protect privacy and civil liberties.
Prior to her Board service, Ms. Williams was the Assistant Attorney General for the Office of Legal Policy at the United States Department of Justice from August 2017 to December 2020. In that role, she served as the primary policy advisor to the Attorney General and the Deputy Attorney General, and as the Chief Regulatory Officer for the Department. Ms. Williams also led the judicial nomination process for the Department, assisting in the selection and confirmation of more than 230 Article III judges to the bench.
Prior to becoming Assistant Attorney General, Ms. Williams was a litigation and appellate partner at a national law firm, where her practice focused on complex commercial, securities, appellate, and First Amendment litigation. From 2005-2006, Ms. Williams served as Special Counsel to the United States Senate Committee on the Judiciary, where she assisted with the confirmation of Chief Justice John G. Roberts, Jr. and Associate Justice Samuel A. Alito, Jr. to the United States Supreme Court.
Ms. Williams clerked for the Hon. Richard C. Wesley on the United State Court of Appeals for the Second Circuit. She graduated from Harvard College magna cum laude, with a degree in History and Literature, and she earned her law degree from Harvard Law School, where she served as Executive Editor of the Harvard Journal of Law and Public Policy.
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, Donahue & Goldberg LLP
Sean H. Donahue's practice is focused on appellate litigation, including environmental cases in federal and state appellate courts, legal counseling, and helping clients communicate effectively to courts, agencies, and other audiences. He is a member of the bars of the District of Columbia and the State of California.
A 1992 graduate of University of Chicago Law School, Sean served as law clerk to Ruth Bader Ginsburg, then of the U.S. Court of Appeals for the D.C. Circuit, and to Justice John Paul Stevens. He entered private practice at Jenner & Block's Washington office, where he worked on civil matters including in telecommunications and First Amendment law. He then spent four years at the Department of Justice, Environmental and Natural Resources Division, Appellate Section, briefing and arguing cases in the United States Courts of Appeals, and state supreme courts concerning federal environmental and natural resources law, federal property law, takings, and Indian law.
Sean has argued approximately 50 cases in federal and state appellate courts. Since first establishing his own practice in 2002, he has represented environmental and public health organization parties in numerous major environmental and clean energy cases in the Supreme Court and the courts of appeals. His current practice includes representation of public interest organizations, governmental bodies, and private entities in environmental, energy, natural resources, and other cases. Sean has taught courses in environmental law, civil procedure, constitutional law and other subjects at Washington & Lee University School of Law, Iowa College of Law, and Georgetown University Law Center, and currently teaches climate change law and policy as a lecturer at Stanford Law School. He has given presentations at law schools including Berkeley, Columbia, Fordham, Harvard, Duke, Georgetown, Maryland, NYU, Northwestern, Stanford, University of Chicago, University of Florida, Vermont Law School, and Washington & Lee.
Judge, United States Court of Appeals, District of Columbia Circuit
Judge Katsas was appointed to the D.C. Circuit in December 2017. He graduated from Princeton University and Harvard Law School, where he was an executive editor on the Harvard Law Review. Between 1989 and 1992, he served as a law clerk to Judge Edward Becker on the Third Circuit, to then-Judge Clarence Thomas on the D.C. Circuit, and to Justice Thomas on the Supreme Court. Between 1992 and 2001, he was an associate and then partner in the Washington office of Jones Day, where he specialized in appellate and complex civil litigation. Between 2001 and 2009, he served in many senior positions in the Department of Justice, including as Assistant Attorney General for the Civil Division and as Acting Associate Attorney General. In 2009, he returned to Jones Day. From January to December 2017, he served as Deputy Assistant to the President and Deputy Counsel to the President.
Before joining the bench, Judge Katsas argued more than 75 appeals, including three cases in the Supreme Court, 13 cases in the D.C. Circuit, and cases in every other federal court of appeals. By appointment of the Chief Justice, he served on the Advisory Committee on Appellate Rules from 2013 to 2017. In 2016, he was elected to membership in the American Academy of Appellate Lawyers.
Chief Deputy Attorney General
Ryan Newman is currently Chief Deputy Attorney General for Florida Office of the Attorney General.
During the first Trump Administration, he served as Counselor to the United States Attorney General for national security and international affairs, Deputy General Counsel (Legal Counsel) for the Department of Defense, and Acting Assistant Attorney General for the Office of Legal Policy at the Department of Justice. Prior to serving in the Executive Branch, Ryan was Chief Counsel to United States Senator Ted Cruz during the 114th Congress.
Ryan served as a law clerk to the Honorable Samuel A. Alito, Jr. on the United States Supreme Court, the Honorable Richard J. Leon on the United States District Court for the District of Columbia, and the Honorable J.L. Edmondson on the United States Court of Appeals for the Eleventh Circuit.
Prior to law school, Ryan was an armor officer in the United States Army assigned to the 1st Squadron, 10th U.S. Cavalry Regiment (Buffalo Soldiers). He deployed to Iraq in 2003 for Operation Iraqi Freedom.
Ryan graduated from the United States Military Academy at West Point in 1998. He earned his law degree with high honors from The University of Texas School of Law in 2007.
Partner, Sidley Austin LLP
JUSTIN SAVAGE is a global co-leader of the firm’s Environmental, Health, and Safety practice and co-leads the Automotive and Mobility sector team, where he is a leading strategist for companies navigating the intersection of complex regulation, high-stakes litigation, and transformative industry change. For nearly three decades, he has led clients through their most consequential environmental, health, and safety (EH&S) disputes and mobility-sector challenges, earning a reputation as both a trusted counselor and a forceful advocate in the courtroom and the boardroom. A core part of Justin’s practice also focuses on regulatory strategy and market entry, advising emerging technology companies, new market entrants, and established industry leaders on launching new products, technologies, and business models. He regularly counsel clients in emerging fields such as robotics and AI on engaging with regulators, anticipating enforcement and compliance risk, and building defensible regulatory strategies that support growth rather than slow it.
Clients praise Justin as “an excellent litigator… strategically clever and creative… attentive, thoughtful and willing to go above and beyond” (Chambers USA 2025). Chambers USA has ranked him for Band 1 for Environment in District of Columbia (2017–2025) and Band 3 for Transportation: Road (Automotive) in USA—Nationwide (2023–2025).
Justin has won some of the most closely watched EH&S and transportation disputes of the past two decades and guided companies through crises where business continuity, brand reputation, and regulatory survival were on the line. His leadership has been repeatedly recognized: he is a three-time Law360 Environmental “MVP” (2018, 2024, 2025) and a Lawdragon “500 Global Leaders in Crisis Management” (2025-2026). He is the first call for companies facing bet-the-company challenges.
Justin’s clients concentrate in heavily regulated industries, including auto and mobility, aviation, chemicals, data centers, energy, mining, and refining. Justin litigates and counsels across the spectrum of U.S. environmental, transportation, and administrative laws, including the Clean Air Act (Title I, mobile sources, and fuels), incident response, RMP, NHTSA, Clean Water Act, TSCA, CSB investigations, APA claims, FOIA litigation, NEPA, and the Safe Drinking Water Act.
Prior to joining Sidley, Justin served for nearly a decade at the Environmental Enforcement Section of the U.S. Department of Justice, where he led teams in several multi-billion dollar enforcement cases. In his career, Justin has regularly taught on a range of environmental and litigation topics. For several years, Justin served as an instructor at the Justice Department’s National Advocacy Center where he taught hundreds of Assistant U.S. Attorneys and other agency lawyers on topics that included trial advocacy and evidence. Since rejoining private practice, Justin has served eight times as a faculty member for the American Law Institute’s Environmental Litigation program. He also lectured on a range of litigation and trial topics for bar associations and organizations, including serving as an instructor for the FAA on trial advocacy.
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.
Director, Clean Air, Climate & Clean Energy Program, Natural Resources Defense Council
John Walke has spearheaded the organization’s national clean-air advocacy before Congress, in the courts, at the U.S. Environmental Protection Agency, and before the public since 2000. Before joining NRDC, he spent three years working as an attorney in the EPA’s Office of General Counsel, where he handled cases related to permitting, air toxins, monitoring, and enforcement under the Clean Air Act. Prior to that, he was an associate in a private law firm based in Washington, D.C. Walke is a graduate of Duke University and Harvard Law School. He is based in Washington, D.C.
Laurence H. Silberman Chair in Constitutional Governance and Senior Fellow, American Enterprise Institute; Co-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. Concurrently, he codirects the Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State.
Mr. White practiced constitutional and administrative law, particularly in the regulation of energy and financial markets. He started his legal career as a law clerk for Judge David B. Sentelle at the US Court of Appeals for the DC Circuit.
Mr. White has written for the Wall Street Journal, the New York Times, the Washington Post, National Affairs, Commentary, Harvard Journal of Law & Public Policy, and Notre Dame Law Review, among other publications. He is a regular contributor to the Yale Journal on Regulation’s Notice and Comment blog, and for many years, he was one of the Weekly Standard’s lead writers on constitutional law and the Supreme Court.
Mr. White has testified often before Congress, including before the Senate’s Committees on the Judiciary; Commerce, Science, and Transportation; and Homeland Security and Governmental Affairs and before the House’s Judiciary and Financial Services Committees. In 2018, the Senate Committee on the Judiciary called him to testify in Brett Kavanaugh’s Supreme Court confirmation hearings to advise senators on Kavanaugh’s approach to administrative law.
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. In 2017, he was appointed to serve on the Administrative Conference of the United States. He also serves on the leadership council for the American Bar Association’s Administrative Law and Regulatory Practice Section, which he will chair in 2023–24. Before joining AEI, he was a research fellow at Stanford University’s Hoover Institution and an adjunct fellow at the Manhattan Institute.
Mr. White has a JD from Harvard Law School and a bachelor of business administration from the College of Business at the University of Iowa.
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