Partner, Mayer Brown LLP
Marcia Madsen was Chair of the Government Contracts practice and co-chair of the National Security Practice at Mayer Brown. She represented contractors in regulatory, policy, transactional, litigation, and investigative matters involving virtually every federal agency. Her clients included defense contractors, information technology and systems integrators, telecommunications companies, engineering firms, insurers, and manufacturing companies. Ms. Madsen's practice included defense of False Claims Act matters, internal investigations, audits, bid protests, claims and disputes before administrative forums and in the federal courts. She was a former Chair of the American Bar Association Section of Public Contract Law and currently co-chairs the Section’s Procurement Fraud Committee. She also is a member of the Federalist Society Administrative Law and Regulation Executive Committee. In addition, Marcia was a member of the Court of Federal Claims Advisory Council - Emeritus, and a recipient of the Court's Golden Eagle award. She was a Past President of the Board of Contract Appeals Bar Association. She was appointed by the Executive Office of the President to chair the Section 1423 Panel which recommended revision of the acquisition laws. She spoke and wrote frequently on government contracts and litigation topics.
Georgetown University Law Center, LL.M., 1980
American University - Washington College of Law, J.D., 1976
University of Utah, B.A., 1972
Partner, Mayer Brown
David Dowd is an experienced litigator at Mayer Brown whose practice has a strong emphasis in government contracting issues and controversies. He advises such clients as those involved in health care, information technology, large military systems, engineering services, and other industries regarding federal procurements and related issues. His counsel in this area includes commercial items, conflicts of interest, cost allowability issues, defective pricing, contract and subcontract negotiations, contract financing, assignments and novations, leasing, prime/sub disputes, preparation of claims, and procurement fraud.
David also handles procurement controversies, as he litigates bid protests and disputes before the Government Accountability Office and the Court of Federal Claims, represents contractors in litigation and arbitrations involving government contracts, and tries federal court litigation focused on contract disputes and alleged fraud.
Health care and insurance companies rely on David for advice regarding federal health care and insurance programs, including FEHBA, Medicare, TRICARE, and FEGLI. He represents these industry clients in bid protest and claim litigation regarding federal health care and insurance programs. In related matters, David counsels biotechnology and pharmaceutical companies on biodefense purchasing opportunities and applications, including research and development.
David has more than 20 years of practice experience, having joined Mayer Brown’s Washington, DC office in 2001 after practicing with two other national law firms.
Vice President of Law & Policy, Property and Environment Research Center
Jonathan Wood is vice president of law and policy at the Property and Environment Research Center (PERC). An attorney, Jonathan has litigated environmental and property-rights cases in the Supreme Court of the United States, federal and state appellate courts, and trial courts across the country. His writing has appeared in the Wall Street Journal, Washington Post, National Review, Reason, and other outlets. And his research has been published in journals such as Environmental Law Reporter, Yale Journal on Regulation Notice & Comment, Pace Environmental Law Review, and California Western Law Review.
Prior to coming to PERC, Jonathan was a senior attorney at Pacific Legal Foundation, where he litigated cases concerning the Endangered Species Act, Clean Water Act, and other federal environmental laws. He was co-counsel for forest landowners in Weyerhaeuser Co. v. U.S. Fish and Wildlife Service, in which the Supreme Court ruled unanimously that private land could not be arbitrarily regulated as critical habitat under the ESA. He also led a successful effort to reform regulation of threatened species to better align the incentives of private landowners with the interests of rare species.
Jonathan has testified before several congressional committees on wildlife conservation and endangered species topics. He has also appeared on national television and radio, including NPR’s All Things Considered, C-Span’s Washington Journal, Stossel, Fox News, and Hill.TV.
Jonathan has a law degree from the New York University School of Law, a masters degree in economic policy from the London School of Economics, and a bachelor’s degree in economics from the University of Texas. He is on the executive committee for the Federalist Society’s Environmental Law and Property Rights Practice Group and a steering committee member for the Environmental Law Institute’s Emerging Leaders Initiative.
Senior Fellow and Director of Constitutional Studies, Manhattan Institute
Ilya Shapiro is a senior fellow and director of constitutional studies at the Manhattan Institute and a contributing editor of City Journal. Previously he was executive director and senior lecturer at the Georgetown Center for the Constitution, and before that a vice president of the Cato Institute.
Shapiro is the author of Lawless: The Miseducation of America’s Elites (2025) and Supreme Disorder: Judicial Nominations and the Politics of America’s Highest Court (2020), coauthor of Religious Liberties for Corporations? (2014), and editor of 11 volumes of the Cato Supreme Court Review (2008-18). He has contributed to a variety of academic, popular, and professional publications, including the Wall Street Journal, Harvard Journal of Law & Public Policy, Washington Post, Los Angeles Times, USA Today, National Review, and Newsweek. He also regularly provides commentary for various media outlets, writes the Shapiro’s Gavel newsletter on Substack, and once appeared on the Colbert Report.
Shapiro has testified many times before Congress and state legislatures and has filed more than 500 amicus curiae “friend of the court” briefs in the Supreme Court. He lectures regularly on behalf of the Federalist Society, is a member of the board of fellows of the Jewish Policy Center, was an inaugural Washington Fellow at the National Review Institute, and has been an adjunct law professor at the George Washington University and University of Mississippi. He is also the chairman of the board of advisers of the Mississippi Justice Institute, a barrister in the Edward Coke Appellate Inn of Court, and a former member of the Virginia Advisory Committee to the U.S. Commission on Civil Rights.
Earlier in his career, Shapiro was a special assistant/adviser to the Multi-National Force in Iraq on rule-of-law issues and practiced at Patton Boggs and Cleary Gottlieb. Before entering private practice, he clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. He holds an AB from Princeton University, an MSc from the London School of Economics, and a JD from the University of Chicago Law School.
Laurence A. Tisch Professor of Law and Director, Classical Liberal Institute, New York University School of Law; Director, Classical Liberal Institute, Civitas Institute University of Texas at Austin
Richard A. Epstein is the Laurence A. Tisch Professor of Law, at New York University, a senior research fellow at the Civitas Institute at the University of Texas Austin, and a senior Lecturer, the University of Chicago. He received an LL.D., h.c . from the University of Ghent, 2003 , and an LLD h.c . from the University of Siegen in 2018 and the Bradley Prize in 2011. He has been a member of the American Academy of Arts and Sciences since 1985. He has edited both the Journal of Legal Studies (1981-1991) and the Journal of Law and Economics (1991-2001). He is also a founder and director of the Classical Liberal Institute at NYU Law School. His most recent book is The Classical Liberal Constitution: The Uncertain Quest for Limited Government (2014). His other books include Takings: Private Property and the Power of Eminent Domain ( 1985); Bargaining with the State (1993); Simple Rules for a Complex World (1995); Principles for a Free Society: Reconciling Individual Liberty and the Common Good (1998); Skepticism and Freedom: A Modern Theory of Classical Liberalism (2003); Design for Liberty: Private Property, Public Administration and the Rule of Law (2011), and most recently, The Myth of Birthright citizenship—and Beyond (2026). He has taught courses in , administrative law, antitrust, constitutional, contracts, environmental law, land use planning; real property, torts and water law. He has written and spoken extensively on a wide range of topics, and is writes a regular column for Defining Ideas.
Fellow, National Security Institute, Antonin Scalia Law School, George Mason University
Vince Vitkowsky chaired the Executive Committee of the Federalist Society’s International and National Security Law and Policy Practice Group for over a decade. He is also a Fellow at the National Security Institute of George Mason University Law School. Vince spent 45 years in private practice, primarily in AmLaw 100/200 firms and their spin-offs. His practice included domestic and international commercial arbitration and litigation, as well as cyber risks and liabilities. Vince's current focus is on national security policy, artificial intelligence, cybersecurity, and counterterrorism. He has often written and spoken on national security and other public policy issues. Among other affiliations, Vince has been an Adjunct Fellow at the Center for Law and Counterterrorism of the Foundation for the Defense of Democracies, a member of the Executive Committee of the American Branch of the International Law Association, and Co-Chair of the Committee on Interventions and Trial Observations of the International Bar Association’s Human Rights Institute. He received his B.A. from Northwestern University and his J.D. from Cornell Law School.
Managing Partner, Bigley Ranish, LLP
Sean M. Bigley is a national security attorney and managing partner of Bigley Ranish, LLP. Mr. Bigley’s practice primarily encompasses defending federal employees and contractors in security clearance denial cases. He also provides personnel security consulting to major international defense and aerospace corporations, and prosecutes intelligence community whistle-blower retaliation cases.
Since first opening his firm in 2013, Mr. Bigley has grown it from a solo practice to a five-attorney partnership with employees in three states. Bigley Ranish, LLP attorneys regularly appear before administrative tribunals at agencies ranging from the CIA to the Department of State, representing in excess of 200 American intelligence officers, diplomats, armed forces personnel, and other security clearance holders each year around the world. In 2016 alone, Mr. Bigley and his colleagues represented clients in roughly forty states and a dozen countries.
The idea for this unique practice was borne out of Mr. Bigley’s prior service as a federal background investigator. Prior to and during law school, Mr. Bigley was an investigator for the U.S. Office of Personnel Management, where he conducted some of that agency’s most sensitive security investigations in the Los Angeles metropolitan area. Mr. Bigley has also served on the faculty of Chapman University, teaching national security and criminal justice courses with an emphasis in U.S.-European security cooperation. Earlier in his career, Mr. Bigley worked for several years in the White House and Department of Homeland Security under President George W. Bush.
A recognized expert in national security law, Mr. Bigley’s commentary on the topic is frequently sought by major media outlets such as Fox News, The New York Times, and CNN. He is a contributing writer for Clearancejobs.com and GovExec.com.
Mr. Bigley earned his Juris Doctorate from Chapman University School of Law. He holds a Bachelor’s Degree from Washington D.C.’s American University and a Master’s Degree from Boston University.
Partner, Baker Hostetler LLP
David Rivkin is a member of the firm's litigation, international and environmental teams and is co-leader of the firm's national appellate practice. He has extensive experience in constitutional, administrative and international law litigation and has been involved in numerous high-profile cases. With his prior experience in the government sector, David draws on a wealth of knowledge when providing compliance advice to companies and handling enforcement proceedings before government agencies on issues arising out of multilateral and unilateral sanctions, the Foreign Corrupt Practices Act (FCPA), anti-boycott issues, bankruptcy and financial fraud matters, and environmental and energy issues.
David has developed and implemented legislative, regulatory and litigation initiatives for two presidential administrations. Over the years, he has published hundreds of articles, op-eds, book reviews and book chapters on a variety of international, legal, constitutional, defense, arms control, foreign policy, environmental and energy issues for various newspapers and magazines, including The Wall Street Journal, The Washington Post, The New York Times, USA Today and The Los Angeles Times, and has been a frequent commentator and guest on TV and radio shows including ABC, CBS, NBC, CNN, Fox News, NPR and PBS.
Partner, Baker & Hostetler LLP
Mark DeLaquil is a first-chair trial and appellate advocate who focuses on complex environmental and regulatory proceedings, First Amendment practice and political law.
Mark has been recognized by Chambers USA for environmental litigation (2015 to 2024) and has been named by Law360 as one of the "Top 5 Environmental Attorneys Under the Age of 40" on two occasions.
Partner, BakerHostetler, Adjunct Fellow, The Manhattan Institute
Andrew Grossman leads BakerHostetler’s Appellate and Major Motion team. He has appeared before the U.S. Supreme Court, nearly all the federal courts of appeals, as well as some state appellate courts, litigating high-profile and complex commercial, administrative and constitutional issues.
Andrew works with practice groups across BakerHostetler to identify and tackle complex issues, advise on administrative law and strategy, tee up issues for appeal and tackle appeals. He has developed and implemented litigation and administrative strategies for clients in several fields and industries.
In addition to his practice, Andrew advises members of Congress on matters of constitutional and administrative law, having testified more than a dozen times before the House and Senate Judiciary Committees. He has been a frequent legal commentator on radio and television, having appeared on Fox News, CNN, MSNBC, CNBC, NPR and its affiliates, CBN and elsewhere. His legal commentary has also appeared in dozens of magazines and newspapers, including The Wall Street Journal, USA Today, The Washington Post, The Washington Times and many others.
Andrew is a Senior Legal Fellow at the Buckeye Institute, an Adjunct Fellow the Manhattan Institute and a member of the leadership of the Federalist Society. He previously served as an adjunct scholar at the Cato Institute’s Robert A. Levy Center for Constitutional Studies and a legal fellow at the Heritage Foundation’s Meese Center for Legal and Judicial Studies. He clerked for Judge Edith H. Jones on the U.S. Court of Appeals for the Fifth Circuit.
Senior Fellow and Director of Constitutional Studies, Manhattan Institute
Ilya Shapiro is a senior fellow and director of constitutional studies at the Manhattan Institute and a contributing editor of City Journal. Previously he was executive director and senior lecturer at the Georgetown Center for the Constitution, and before that a vice president of the Cato Institute.
Shapiro is the author of Lawless: The Miseducation of America’s Elites (2025) and Supreme Disorder: Judicial Nominations and the Politics of America’s Highest Court (2020), coauthor of Religious Liberties for Corporations? (2014), and editor of 11 volumes of the Cato Supreme Court Review (2008-18). He has contributed to a variety of academic, popular, and professional publications, including the Wall Street Journal, Harvard Journal of Law & Public Policy, Washington Post, Los Angeles Times, USA Today, National Review, and Newsweek. He also regularly provides commentary for various media outlets, writes the Shapiro’s Gavel newsletter on Substack, and once appeared on the Colbert Report.
Shapiro has testified many times before Congress and state legislatures and has filed more than 500 amicus curiae “friend of the court” briefs in the Supreme Court. He lectures regularly on behalf of the Federalist Society, is a member of the board of fellows of the Jewish Policy Center, was an inaugural Washington Fellow at the National Review Institute, and has been an adjunct law professor at the George Washington University and University of Mississippi. He is also the chairman of the board of advisers of the Mississippi Justice Institute, a barrister in the Edward Coke Appellate Inn of Court, and a former member of the Virginia Advisory Committee to the U.S. Commission on Civil Rights.
Earlier in his career, Shapiro was a special assistant/adviser to the Multi-National Force in Iraq on rule-of-law issues and practiced at Patton Boggs and Cleary Gottlieb. Before entering private practice, he clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. He holds an AB from Princeton University, an MSc from the London School of Economics, and a JD from the University of Chicago Law School.
Senior Fellow and Director of Constitutional Studies, Manhattan Institute
Ilya Shapiro is a senior fellow and director of constitutional studies at the Manhattan Institute and a contributing editor of City Journal. Previously he was executive director and senior lecturer at the Georgetown Center for the Constitution, and before that a vice president of the Cato Institute.
Shapiro is the author of Lawless: The Miseducation of America’s Elites (2025) and Supreme Disorder: Judicial Nominations and the Politics of America’s Highest Court (2020), coauthor of Religious Liberties for Corporations? (2014), and editor of 11 volumes of the Cato Supreme Court Review (2008-18). He has contributed to a variety of academic, popular, and professional publications, including the Wall Street Journal, Harvard Journal of Law & Public Policy, Washington Post, Los Angeles Times, USA Today, National Review, and Newsweek. He also regularly provides commentary for various media outlets, writes the Shapiro’s Gavel newsletter on Substack, and once appeared on the Colbert Report.
Shapiro has testified many times before Congress and state legislatures and has filed more than 500 amicus curiae “friend of the court” briefs in the Supreme Court. He lectures regularly on behalf of the Federalist Society, is a member of the board of fellows of the Jewish Policy Center, was an inaugural Washington Fellow at the National Review Institute, and has been an adjunct law professor at the George Washington University and University of Mississippi. He is also the chairman of the board of advisers of the Mississippi Justice Institute, a barrister in the Edward Coke Appellate Inn of Court, and a former member of the Virginia Advisory Committee to the U.S. Commission on Civil Rights.
Earlier in his career, Shapiro was a special assistant/adviser to the Multi-National Force in Iraq on rule-of-law issues and practiced at Patton Boggs and Cleary Gottlieb. Before entering private practice, he clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. He holds an AB from Princeton University, an MSc from the London School of Economics, and a JD from the University of Chicago Law School.
Independent Review of Procurements Is Worth It: There Is No Support for Hamstringing the GAO Bid Protest Process
Marcia G. Madsen, David F. Dowd, Roger V. Abbott
Note from the Editor: This article criticizes a recent change to the GAO bid protest...
Christie v. NCAA: Anti-Commandeering or Bust
Jonathan Wood, Ilya Shapiro
Note from the Editor: This article argues that the Supreme Court should find unconstitutional the...
The Supreme Court Tackles Patent Reform: Why the Supreme Court Should End Inter Partes Review in Oil States
Richard A. Epstein
Note from the Editor: This article argues that the Supreme Court should find unconstitutional the...
Cyber, Robotic, and Space Weapons in International Conflict
Vincent Vitkowsky
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The Supreme Court Tackles Patent Reform
Click here to download a PDF version of this blog post. Oil States Energy Services,...
Why the Immigration System is the Worst Part of the U.S. Government (and How to Fix It)
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Sean M. Bigley
Note from the Editor: This article describes the procedures involved in determining whether to grant...
Why the Immigration System is the Worst Part of the U.S. Government (and How to Fix it)
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SCOTUS Orders: 10/1/2015
Here is a list of the questions presented in the new grants (where that information...
Does EPA’s Clean Power Plan Proposal Violate the States’ Sovereign Rights?
David B. Rivkin, Mark DeLaquil, Andrew Grossman
Note from the Editor: This article discusses the Environmental Protection Agency’s Clean Power Plan under...