Board Member, Center for Equal Opportunity
Roger Clegg is a Board Member at and former President and General Counsel of the Center for Equal Opportunity. He focuses on legal issues arising from civil rights laws--including the regulatory impact on business and the problems in higher education created by affirmative action. A former Deputy Assistant Attorney General in the Reagan and Bush administrations, Clegg held the second highest positions in both the Civil Rights Division (1987-91) and in the Environment and Natural Resources Division (1991-93). He has held several other positions at the U.S. Justice Department, including Assistant to the Solicitor General (1985-87), Associate Deputy Attorney General (1984-85), and Acting Assistant Attorney General in the Office of Legal Policy (1984). Clegg is a graduate of Yale University Law School (1981).
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.
Senior Attorney and Counsel for Special Projects, Competitive Enterprise Institute
CEI’s Counsel for Special Projects is Hans Bader. Coming to CEI in 2003, Hans’s prior casework has included suits involving the First Amendment, federalism, and civil rights issues. He graduated from the University of Virginia with a B.A. in economics and history, and later earned his J.D. from Harvard Law School. Just before joining CEI, Hans was Senior Counsel at the Center for Individual Rights.
Senior Fellow, National Center for Policy Analysis
Senior Fellow at the National Center for Policy Analysis (NCPA) and author of Free To Choose Medicine: Better Drugs Sooner at Lower Cost
Adjunct Fellow, Competitive Enterprise Institute
Gregory Conko is an Adjunct Fellow at the Competitive Enterprise Institute and Vice President of Programs at DonorsTrust. His research at CEI focuses on health care, food and drug regulation, agriculture and agricultural trade, and nutrition and public health. He also has broad expertise in science and environmental policy and in administrative and regulatory law.
Since 2021, Conko has managed the grants and grantee programs at the donor-advised fund sponsor DonorsTrust, but he continues to research and write on policy matters for the Competitive Enterprise Institute. Before joining DonorsTrust, Conko was Deputy Director of the George Mason University Law & Economics Center, a Senior Fellow and later Executive Director of CEI.
Conko is the author or co-author of numerous books, studies, and articles, and Barron’s called his book, The Frankenfood Myth: How Protest and Politics Threaten the Biotech Revolution, co-authored with Henry I. Miller, one of the 25 best books of 2004. His other writings have appeared in such journals as Nature Biotechnology, Transgenic Research, Health Matrix: Journal of Law & Medicine, and the Cumberland Law Review, and in such newspapers as the Financial Times, The Wall Street Journal, Los Angeles Times, and USA Today.
Conko is a member of the Federalist Society’s Regulatory Transparency Project Working Group on FDA & Health, a member of the American Council on Science and Health’s Board of Scientific and Policy Advisors. He received a JD degree magna cum laude from the George Mason University School of Law and a BA in political science and history from American University. He lives in Virginia with his wife and son.
Senior Fellow, Center for Energy and Environment, Competitive Enterprise Institute
Christopher C. Horner serves as a Senior Fellow at CEI. As an attorney in Washington, DC Horner has represented CEI as well as scientists and Members of the U.S. House and Senate on matters of environmental policy in the federal courts including the Supreme Court. He has written on numerous topics in publications ranging from law reviews to legal and industrial trade journals to print and online opinion pages, and is the author of two best-selling books: Red Hot Lies: How Global Warming Alarmists Use Threats, Fraud and Deception to Keep You Misinformed (Regnery, 2008) and The Politically Incorrect Guide to Global Warming and Environmentalism (Regnery, 2007), which spent half of 2007 on the New York Times bestseller list.
Horner has testified before the United States Senate Committees on Foreign Relations and Environment and Public Works, and works on a legal and policy level with numerous think tanks and policy organizations throughout the world. He has given numerous addresses to audiences in the European Parliament in Strasbourg and Brussels, and before policymakers in European capitals including London, Rome, Prague, Copenhagen, Madrid and Warsaw, on topics ranging from rail deregulation and unfunded pension liability to all manner of energy and environment issues. Horner serves on the international law practice group’s executive committee for an internationally respected assembly of lawyers, and has provided counsel and work product on other matters including intellectual property, WTO proceedings and treaty law and policy.
Greenpeace has repeatedly targeted Mr. Horner, by stealing his garbage on a weekly basis, issuing press releases announcing with whom he dines and including him in various other hysterical publications including most recently "A Field Guide to Climate Criminals" distributed at the UN climate meeting in Montreal in December 2005.
Mr. Horner has provided legal, policy and political commentary several hundred times each on both television and radio, in the United States, Europe, Canada, and Australia, including scores of visits each on the Fox News Channel, Court TV, MSNBC with repeat visits on The News Hour with Jim Lehrer, BBC, CNN, CNN International, ITN, CBC, Bloomberg and Reuters Television. Mr. Horner has also been a guest on The Daily Show with Jon Stewart. He has guest hosted television commentary programs and makes weekly appearances on and regularly guest hosts nationally and regionally syndicated radio shows in America.
He has been a frequent contributor in the Washington Times, National Review Online and TechCentralStation.com opinion pages, is a guest columnist for United Press International and OpinionEditorials.com, and has regularly contributed to the Brussels legislative news magazine EU Reporter .
Horner also regularly writes for Energy Tribune and Spain's Actualidad Economica.
He received his Juris Doctorate from Washington University in St. Louis where he received the Judge Samuel Breckenridge Award for Advocacy.
Senior Vice President for Legal Studies, Cato Institute
Clark Neily is senior vice president for legal studies at the Cato Institute. His areas of interest include constitutional law, overcriminalization, civil forfeiture, police accountability, and gun rights. Neily is the author of Terms of Engagement: How Our Courts Should Enforce the Constitution’s Promise of Limited Government. His writing has appeared in the Wall Street Journal, Forbes, and National Review Online, as well as various law reviews, including the Harvard Journal of Law and Public Policy, George Mason Law Review, Georgetown Journal of Law and Public Policy, NYU Journal of Law and Liberty, and Texas Review of Law and Politics. Neily is a frequent guest speaker and lecturer for the Federalist Society, Institute for Humane Studies, and American Constitution Society.
Before joining Cato in 2017, Neily was a senior attorney and constitutional litigator at the Institute for Justice and director of the Institute’s Center for Judicial Engagement. He is also an adjunct professor at the University of Texas School of Law, where he teaches constitutional litigation and public-interest law.
Neily served as co-counsel in District of Columbia v. Heller, the historic case in which the Supreme Court held for the first time that the Second Amendment protects an individual right to own a gun for self-defense.
Neily began his legal career as a law clerk to Judge Royce Lamberth on the U.S. District Court for the District of Columbia. After that he spent four years in the trial department of the Dallas-based firm Thompson & Knight. Neily received his undergraduate and law degrees from the University of Texas, where he was Chief Articles Editor of the Texas Law Review.
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.
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.
Senior Fellow, Center for Energy and Environment, Competitive Enterprise Institute
Marlo Lewis, Jr. is a Senior Fellow at the Competitive Enterprise Institute, where he writes on global warming, energy policy, and other public policy issues. Prior to joining CEI in April 2002, he served as Director of External Relations at the Reason Foundation in Los Angeles, California. During the 106th Congress, Marlo served as Staff Director of the House Government Reform Subcommittee on National Economic Growth, Natural Resources, and Regulatory Affairs.
His interests include the science, economics, and politics of global warming policy; the precautionary principle; environmentalism and religion; and the moral basis of free enterprise. Marlo has been published in The Washington Times, Investors Business Daily, TechCentralStation, National Review, and Interpretation: A Journal of Political Philosophy. He has appeared on various television and radio programs, and his ideas have been featured in radio commentary by Rush Limbaugh and G. Gordon Liddy.
Before joining CEI for his first tenure with the organization in 1993, Marlo served as Research Director for the grassroots organization, Citizens Against Government Waste. Earlier, he was a Staff Consultant to the House Foreign Affairs Subcommittee on International Economic Policy and Trade, a Special Assistant at the State Department Bureau of Inter-American Affairs and Bureau of International Organization Affairs, and a Visiting Assistant Professor of Political Science at Claremont McKenna College. He holds a Ph.D. in Government from Harvard University and a B.A. in Political Science from Claremont McKenna College.
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.
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.
Partner, O'Melveny & Myers LLP
Gregory Jacob is a partner in O’Melveny’s Washington, D.C. office. Greg Jacob represents financial services companies including banks, investment managers, health care payors, and insurers, as well as other employers, in class action and other litigation concerning ERISA and other labor and employment matters. A former Solicitor of Labor, Greg has extensive knowledge on a wide variety of labor and employment issues including ERISA, FLSA, OFCCP, and whistleblower law. He regularly litigates in federal courts throughout the country, defends clients against Department of Labor investigations, and provides counseling to plans and plan sponsors.
Prior to rejoining O’Melveny in 2021, Greg served as Counsel to Vice President Pence and Deputy Assistant to the President. He directly advised the Vice President on all legal issues relating to the Office of the Vice President, and advised the White House Coronavirus Task Force concerning the Defense Production Act and other legal issues related to bolstering the domestic supply chain.
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.
Senior Attorney and Counsel for Special Projects, Competitive Enterprise Institute
CEI’s Counsel for Special Projects is Hans Bader. Coming to CEI in 2003, Hans’s prior casework has included suits involving the First Amendment, federalism, and civil rights issues. He graduated from the University of Virginia with a B.A. in economics and history, and later earned his J.D. from Harvard Law School. Just before joining CEI, Hans was Senior Counsel at the Center for Individual Rights.
Senior Attorney and Counsel for Special Projects, Competitive Enterprise Institute
CEI’s Counsel for Special Projects is Hans Bader. Coming to CEI in 2003, Hans’s prior casework has included suits involving the First Amendment, federalism, and civil rights issues. He graduated from the University of Virginia with a B.A. in economics and history, and later earned his J.D. from Harvard Law School. Just before joining CEI, Hans was Senior Counsel at the Center for Individual Rights.
Board Member, Center for Equal Opportunity
Roger Clegg is a Board Member at and former President and General Counsel of the Center for Equal Opportunity. He focuses on legal issues arising from civil rights laws--including the regulatory impact on business and the problems in higher education created by affirmative action. A former Deputy Assistant Attorney General in the Reagan and Bush administrations, Clegg held the second highest positions in both the Civil Rights Division (1987-91) and in the Environment and Natural Resources Division (1991-93). He has held several other positions at the U.S. Justice Department, including Assistant to the Solicitor General (1985-87), Associate Deputy Attorney General (1984-85), and Acting Assistant Attorney General in the Office of Legal Policy (1984). Clegg is a graduate of Yale University Law School (1981).
Senior Fellow, Center for Energy and Environment, Competitive Enterprise Institute
Christopher C. Horner serves as a Senior Fellow at CEI. As an attorney in Washington, DC Horner has represented CEI as well as scientists and Members of the U.S. House and Senate on matters of environmental policy in the federal courts including the Supreme Court. He has written on numerous topics in publications ranging from law reviews to legal and industrial trade journals to print and online opinion pages, and is the author of two best-selling books: Red Hot Lies: How Global Warming Alarmists Use Threats, Fraud and Deception to Keep You Misinformed (Regnery, 2008) and The Politically Incorrect Guide to Global Warming and Environmentalism (Regnery, 2007), which spent half of 2007 on the New York Times bestseller list.
Horner has testified before the United States Senate Committees on Foreign Relations and Environment and Public Works, and works on a legal and policy level with numerous think tanks and policy organizations throughout the world. He has given numerous addresses to audiences in the European Parliament in Strasbourg and Brussels, and before policymakers in European capitals including London, Rome, Prague, Copenhagen, Madrid and Warsaw, on topics ranging from rail deregulation and unfunded pension liability to all manner of energy and environment issues. Horner serves on the international law practice group’s executive committee for an internationally respected assembly of lawyers, and has provided counsel and work product on other matters including intellectual property, WTO proceedings and treaty law and policy.
Greenpeace has repeatedly targeted Mr. Horner, by stealing his garbage on a weekly basis, issuing press releases announcing with whom he dines and including him in various other hysterical publications including most recently "A Field Guide to Climate Criminals" distributed at the UN climate meeting in Montreal in December 2005.
Mr. Horner has provided legal, policy and political commentary several hundred times each on both television and radio, in the United States, Europe, Canada, and Australia, including scores of visits each on the Fox News Channel, Court TV, MSNBC with repeat visits on The News Hour with Jim Lehrer, BBC, CNN, CNN International, ITN, CBC, Bloomberg and Reuters Television. Mr. Horner has also been a guest on The Daily Show with Jon Stewart. He has guest hosted television commentary programs and makes weekly appearances on and regularly guest hosts nationally and regionally syndicated radio shows in America.
He has been a frequent contributor in the Washington Times, National Review Online and TechCentralStation.com opinion pages, is a guest columnist for United Press International and OpinionEditorials.com, and has regularly contributed to the Brussels legislative news magazine EU Reporter .
Horner also regularly writes for Energy Tribune and Spain's Actualidad Economica.
He received his Juris Doctorate from Washington University in St. Louis where he received the Judge Samuel Breckenridge Award for Advocacy.
Senior Vice President for Legal Studies, Cato Institute
Clark Neily is senior vice president for legal studies at the Cato Institute. His areas of interest include constitutional law, overcriminalization, civil forfeiture, police accountability, and gun rights. Neily is the author of Terms of Engagement: How Our Courts Should Enforce the Constitution’s Promise of Limited Government. His writing has appeared in the Wall Street Journal, Forbes, and National Review Online, as well as various law reviews, including the Harvard Journal of Law and Public Policy, George Mason Law Review, Georgetown Journal of Law and Public Policy, NYU Journal of Law and Liberty, and Texas Review of Law and Politics. Neily is a frequent guest speaker and lecturer for the Federalist Society, Institute for Humane Studies, and American Constitution Society.
Before joining Cato in 2017, Neily was a senior attorney and constitutional litigator at the Institute for Justice and director of the Institute’s Center for Judicial Engagement. He is also an adjunct professor at the University of Texas School of Law, where he teaches constitutional litigation and public-interest law.
Neily served as co-counsel in District of Columbia v. Heller, the historic case in which the Supreme Court held for the first time that the Second Amendment protects an individual right to own a gun for self-defense.
Neily began his legal career as a law clerk to Judge Royce Lamberth on the U.S. District Court for the District of Columbia. After that he spent four years in the trial department of the Dallas-based firm Thompson & Knight. Neily received his undergraduate and law degrees from the University of Texas, where he was Chief Articles Editor of the Texas Law Review.
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.
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.
Senior Fellow, Center for Energy and Environment, Competitive Enterprise Institute
Marlo Lewis, Jr. is a Senior Fellow at the Competitive Enterprise Institute, where he writes on global warming, energy policy, and other public policy issues. Prior to joining CEI in April 2002, he served as Director of External Relations at the Reason Foundation in Los Angeles, California. During the 106th Congress, Marlo served as Staff Director of the House Government Reform Subcommittee on National Economic Growth, Natural Resources, and Regulatory Affairs.
His interests include the science, economics, and politics of global warming policy; the precautionary principle; environmentalism and religion; and the moral basis of free enterprise. Marlo has been published in The Washington Times, Investors Business Daily, TechCentralStation, National Review, and Interpretation: A Journal of Political Philosophy. He has appeared on various television and radio programs, and his ideas have been featured in radio commentary by Rush Limbaugh and G. Gordon Liddy.
Before joining CEI for his first tenure with the organization in 1993, Marlo served as Research Director for the grassroots organization, Citizens Against Government Waste. Earlier, he was a Staff Consultant to the House Foreign Affairs Subcommittee on International Economic Policy and Trade, a Special Assistant at the State Department Bureau of Inter-American Affairs and Bureau of International Organization Affairs, and a Visiting Assistant Professor of Political Science at Claremont McKenna College. He holds a Ph.D. in Government from Harvard University and a B.A. in Political Science from Claremont McKenna College.
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