George C. Dix Professor in Constitutional Law, Northwestern University Pritzker School of Law
John O. McGinnis is a graduate of Harvard College and Harvard Law School where he was an editor of the Harvard Law Review. He also has an MA degree from Balliol College, Oxford, in philosophy and theology. Professor McGinnis clerked on the U.S. Court of Appeals for the District of Columbia. From 1987 to 1991, he was deputy assistant attorney general in the Office of Legal Counsel at the Department of Justice. He is the author of Accelerating Democracy: Transforming Government Through Technology (Princeton 2013) and Originalism and the Good Constitution (Harvard 2013) (with M. Rappaport). He is a past winner of the Paul Bator award given by the Federalist Society to an outstanding academic under 40. He has been listed by the United States on the roster of panelists who may be called upon to decide World Trade Organization Disputes.
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.
Founder, Law Office of Eileen J. O'Connor PLLC
After nearly 30 years as a national tax specialist with the IRS and major accounting firms, Eileen J. O’Connor, now an attorney in private practice, was Assistant Attorney General for the Justice Department’s Tax Division for six years during the administration of President George W. Bush and a member of then-President-elect Trump’s Treasury Department Transition Team. She focuses on federal administrative and tax law.
George C. Dix Professor in Constitutional Law, Northwestern University Pritzker School of Law
John O. McGinnis is a graduate of Harvard College and Harvard Law School where he was an editor of the Harvard Law Review. He also has an MA degree from Balliol College, Oxford, in philosophy and theology. Professor McGinnis clerked on the U.S. Court of Appeals for the District of Columbia. From 1987 to 1991, he was deputy assistant attorney general in the Office of Legal Counsel at the Department of Justice. He is the author of Accelerating Democracy: Transforming Government Through Technology (Princeton 2013) and Originalism and the Good Constitution (Harvard 2013) (with M. Rappaport). He is a past winner of the Paul Bator award given by the Federalist Society to an outstanding academic under 40. He has been listed by the United States on the roster of panelists who may be called upon to decide World Trade Organization Disputes.
Former General Counsel of the U.S. Immigration and Naturalization, Former United States Ambassador to East Timor
Grover Joseph Rees is a Louisiana native whose family has lived in the Breaux Bridge/Lafayette area since the 1700s.
His first job after college was as an assistant to Congressman Dave Treen (R-LA3), who had just been elected as the first Republican Congressman from Louisiana since Reconstruction.
Rees graduated with honors from LSU Law School, where he served as Editor-in-Chief of the Louisiana Law Review. While in law school he worked on Ronald Reagan’s 1976 presidential campaign and was a Reagan delegate from Louisiana to the Republican National Convention. He also served as a member of the Lafayette Parish Republican Executive Committee and as a board member of Acadiana Right to Life.
In 1979, when Congressman Treen ran successfully for Governor, he asked Rees to write his authorized biography. The book, Dave Treen of Louisiana, was read and discussed widely during the campaign and after Treen’s election.
In 1985-86 Rees served as Special Counsel for Judicial Selection in President Reagan’s Justice Department, working closely with Attorney General Ed Meese to reorganize the judicial selection process to make it more philosophically oriented. These efforts resulted in the appointment of over 100 federal judges and were widely credited with transforming the federal judiciary.
From 1986 through 1991 Rees served as Chief Justice of the High Court of American Samoa, an Article I federal judicial position.
From 1991 through 1993 he was General Counsel of the U.S. Immigration and Naturalization Service.
In 1995 Rees went to work for the new Republican Congress as staff director and chief counsel of the Subcommittee on International Operations and Human Rights. He worked with subcommittee chairman Chris Smith (R.-N.J.) to cut U.S. funding for the International Planned Parenthood Federation and other organizations that perform and promote abortions overseas. Rees also worked on the drafting and enactment of the International Religious Freedom Act, the Trafficking Victims Protection Act, and other legislation that has helped to bring U.S. foreign policy into closer alignment not only with our national interests but also with our values.
In 2001-2002 Rees worked for Congressman Henry Hyde (R.-Ill.), who was then serving as Chairman of the House International Relations Committee.
From 2002 until 2006 Rees served as the first United States Ambassador to newly independent East Timor.
From 2006 until 2009 Ambassador Rees was the United States Special Representative for Social Issues, responsible for representing the United States on issues relating to vulnerable persons and the family within the United Nations system.
Ambassador Rees retired from government service in January 2009 and returned to Lafayette. He is married to Lan Dai Nguyen Rees and is a member of St. Genevieve’s Catholic parish in Lafayette. He was recently elected to serve as a member of the Louisiana Republican State Central Committee.
Senior Fellow, National Security Institute, Antonin Scalia School of Law, George Mason University; Retired Professor, Distinguished Fellow and Co-Founder, Center for National Security Law, University of Virginia School of Law (1987-2020)
Robert F. Turner holds both professional and academic doctorates from the University of Virginia School of Law. He co-founded the Center for National Security Law with Professor John Norton Moore in April 1981 and served as its associate director for 39 years, except for two periods of government service in the 1980s and during 1994-95, when he occupied the Charles H. Stockton Chair of International Law at the U.S. Naval War College in Newport, Rhode Island. He retired from UVA in January 2020 and currently serves as a non-resident senior fellow at the GMU National Security Institute. He also served briefly in 2020 as President of the Crime Prevention Research Center—one of the most respected pro-Second Amendment groups in the country—while its founder, Dr. John Lott, was on leave of absence.
A former Army captain and veteran of two tours in Vietnam, Turner served as a research associate and public affairs fellow at Stanford's Hoover Institution on War, Revolution and Peace before spending five years in the mid-1970s as national security adviser to U.S. Senator Robert P. Griffin, a member of the Senate Foreign Relations Committee (where Turner anticipated by seven years the Supreme Court’s landmark INS v. Chadha decision, striking down legislative vetoes). He also served in the executive branch during the Reagan administration as a member of the Senior Executive Service, first in the Pentagon as special assistant to the undersecretary of defense for policy, then in the White House as counsel to the President's Intelligence Oversight Board, and at the State Department as principal deputy and then acting assistant secretary for legislative affairs. In 1986, he became the first president of the congressionally established United States Institute of Peace.
A former three-term chairman of the ABA Standing Committee on Law and National Security (and for many years editor of the ABA National Security Law Report), Turner also chaired the Executive-Congressional Relations Subcommittee of the ABA Section on International Law and Practice and chaired or co-chaired the National Security Law Subcommittee of the Federalist Society’s International and National Security Law Practice Group for several years.
Turner taught undergraduate courses at Virginia on international law, U.S. foreign policy, the Vietnam War and foreign policy and the law in what is now the Woodrow Wilson Department of Politics. In addition, he co-taught National Security Law and advanced national security law seminars on the Indochina War and on war and peace with Moore at the Law School.
The author or editor of 18 books and monographs (including co-editor of the Center's 1,600-page National Security Law & Policy casebook, National Security Law Documents, and Legal Issues in the Struggle Against Terror) and numerous articles in law reviews and other professional journals, Turner has also contributed articles to most of the major U.S. newspapers, including The New York Times and USA Today. In an op-ed published in The International Herald Tribune in September 1990, he and Moore were the first to call for a war-crimes trial for Iraqi dictator Saddam Hussein and for international controls over Iraq's weapons of mass destruction, and the following month he wrote the lead story in The Washington Post Sunday Outlook Section, “Killing Saddam: Would It Be a Crime?,” arguing that Hussein would be a lawful target during Operation Desert Storm. (His reasoning contributed to the modern legal justification for drone strikes targeting specific terrorist leaders.) Three years before the terrorist attacks of September 11, 2001, Turner published an op-ed in USA Today entitled: “In Self-defense, U.S. Has Right to Kill bin Laden.”
In July 2007, he co-authored an article in The Washington Post with former U.S. Marine Corps Commandant General P.X. Kelley, “War Crimes and the White House,” criticizing the use of unlawful “enhanced interrogation techniques” by the Central Intelligence Agency. On the 40th anniversary of the fall of Saigon he authored an article in The Wall Street Journal, “Saigon’s Fall Still Echoes Today,” noting that after the war ended, Hanoi admitted it had made a decision in 1959 to open the Ho Chi Minh Trail and start sending troops, weapons and supplies into South Vietnam to overthrow its government — just as the United States had charged. In 2010 Turner received the first “person of the year” award from SACEI, a major Vietnamese-American human rights organization.
A frequent lecturer and debater, Turner has spoken at more than 100 law schools around the nation and in other fora — taking on as many as four opponents at a time. His debate opponents have included former or future deans of Yale, Stanford, the University of Chicago and Berkeley law schools. Following a 1987 debate against Dean Harlan Cleveland (Rhodes Scholar, U.S. Ambassador to NATO, and Presidential Medal of Freedom recipient) in which Turner defended the legality of U.S. support for the Nicaraguan contras during the Reagan Administration, the host student debating societies awarded Turner the victory by an 85-to-15 percent margin.
Turner has also written and lectured widely on University of Virginia founder and America’s third president Thomas Jefferson. In 2000-2001 he chaired the Jefferson-Hemings Scholars Commission. In his 2012 book Master of the Mountain, Jefferson critic Henry Wiencek described Turner as “Jefferson’s chief scholarly defender."
A former distinguished lecturer at the U.S. Military Academy at West Point, Turner is a member of the Council on Foreign Relations, the Academy of Political Science, the Committee on the Present Danger, The Heterodox Academy, and other professional organizations. He maintained a 4.0 gpa as a graduate student at Stanford in History and Political Science and in the UVA Department of Government and Foreign Affairs and was the first person admitted directly to the UVA academic law doctorate (SJD) program without first being required to earn an LL.M. master’s degree. He was selected for inclusion in Who’s Who in American Law less than two years after graduating from law school and Who’s Who in the World before he reached the age of 40. Turner has testified before more than a dozen different congressional committees on issues of international or constitutional law and other topics.
Director, Washington Legislative Office, American Civil Liberties Union (ACLU)
Laura W. Murphy is in her second tenure as Director of the ACLU’s Washington Legislative Office, a position she first held from 1993-2005. Since returning Murphy has maintained strong relationships with leaders in the United States Congress and the Obama Administration to advance the ACLU’s public policy priorities including national security, criminal justice, human rights, privacy, reproductive rights, civil rights and First Amendment issues.
Recently, Murphy played a leadership role in the passage of the Fair Sentencing Act of 2010 signed into law by President Obama on August 3, 2010—a law that reduced the sentencing disparity between crack and powder cocaine and that begins to address some of the racial disparities in the criminal justice system. Under her leadership, the ACLU Washington Legislative Office worked with Congress and the White House to gain support around federally-funded abortions for servicewomen and military dependents in the cases of rape or incest. The provision was signed into law on January 2, 2013.
Prior to her return to the ACLU, she founded and directed her own firm, Laura Murphy & Associates, L.L.C., where she utilized her 30 years of policy-making and political expertise to guide and advise corporate and non-profit clients at the national, state and local levels.
Murphy is well known for her notable legislative career advancing human rights and civil liberties. Both major newspapers on Capitol Hill, Roll Call and The Hill, selected Murphy as one of the 50 most influential lobbyists and one of 17 top nonprofit lobbyists in 1997 and 2003, respectively. In 1997, and again in 2003, the Congressional Black Caucus honored her for her significant contributions to legislation that advances civil rights and civil liberties. She has been given awards for her work with Congress and the White House by ACLU affiliates in Massachusetts, Mississippi and Maryland. Murphy has also been instrumental in garnering support from African Americans for same sex marriage, especially in her home state of Maryland. Murphy’s family has a storied history in the civil rights movement and in the Black press, and they were intimately involved in the successful 2012 campaign for marriage equality in Maryland.
In previous professional positions Murphy served as chief of staff to a California Assembly Speaker and a cabinet member for the Mayor of the District of Columbia. Murphy has testified more than a dozen times before Congress and is an experienced national spokesperson. She has been a frequent guest on television and radio including PBS, “NBC Nightly News” and “The Today Show”, “ABC World News”, CNN, Fox News, and National Public Radio.
Founding Director, Knight First Amendment Institute at Columbia University
Jameel Jaffer is the founding director of the Knight First Amendment Institute at Columbia University, which works to protect and expand the freedoms of speech and the press through strategic litigation, research, and public education. Until recently, Jaffer was deputy legal director at the American Civil Liberties Union and director of the ACLU’s Center for Democracy, in which role he oversaw the ACLU’s work relating to free speech, privacy, technology, national security, and international human rights.
Jaffer has litigated some of the most significant post-9/11 cases relating to national security and civil liberties, including cases concerning detention, interrogation, surveillance, targeted killing, and government secrecy. He co-led the litigation that resulted in the publication of the Bush administration’s “torture memos”—a lawsuit the New York Times described as “among the most successful in the history of public disclosure.” More recently, he led the ACLU’s litigation that resulted in the publication of the Obama administration’s “drone memos.”
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.
Patrick Hotung Professor of Constitutional Law, Georgetown University Law Center; Faculty Director, Georgetown Center for the Constitution
Randy E. Barnett is the Patrick Hotung Professor of Constitutional Law at the Georgetown University Law Center and is the Faculty Director of the Georgetown Center for the Constitution. After graduating from Northwestern University and Harvard Law School, he tried many felony cases as a prosecutor in the Cook County States’ Attorney’s Office in Chicago. A recipient of a Guggenheim Fellowship in Constitutional Studies and the Bradley Prize, Professor Barnett has been a visiting professor at Penn, Northwestern and Harvard Law School.
Professor Barnett’s publications includes thirteen books, more than one hundred articles and reviews, as well as numerous op-eds. His most recent book is Felony Review: Tales of True Crime and Corruption in Chicago (2026). His other books on the Constitution include: A Life for Liberty: The Making of an American Originalist (2024); The Original Meaning of the Fourteenth Amendment: Its Letter and Spirit (2021) (with Evan Bernick); An Introduction to Constitutional Law: 100 Supreme Court Cases Everyone Should Know (2019) (with Josh Blackman); Restoring the Lost Constitution: The Presumption of Liberty (2nd ed. 2013); Our Republican Constitution: Securing the Liberty and Sovereignty of We the People (2016); and Constitutional Law: Cases in Context (5th ed. forthcoming 2027) (with Josh Blackman). His books on contracts are The Oxford Introductions to U.S. Law: Contracts (2010) and Contracts: Cases and Doctrine (7th ed. 2021) (with Nate Oman). And he is the author of The Structure of Liberty: Justice and the Rule of Law (2nd ed. 2014).
In 2004, he argued the medical marijuana case of Gonzalez v. Raich before the U.S. Supreme Court. In 2012, he was one of the lawyers representing the National Federation of Independent Business in its constitutional challenge to the Affordable Care Act in NFIB v. Sebelius. He’s appeared in numerous documentaries and portrayed a prosecutor in the 2010 science-fiction feature film, InAlienable: The Movie. On X he is @RandyEBarnett
Nonresident Senior Fellow, American Enterprise Institute
Jim Harper is a nonresident senior fellow at the American Enterprise Institute (AEI), where he focuses on privacy issues, and select legal and constitutional law issues.
A lawyer by training, Mr. Harper has served as counsel for the Subcommittee on Commercial, and Administrative Law of the US House Committee on the Judiciary and as counsel for the Senate Committee on Government Affairs. More recently, he worked at the Competitive Enterprise Institute and the Cato Institute, where he wrote on the intersection of business, technology, and public policy, including privacy, surveillance, data security, telecommunications, and cryptocurrencies. He also served as global policy counsel for the Bitcoin Foundation. Mr. Harper was a founding member of the Department of Homeland Security’s Data Privacy and Integrity Advisory Committee. Early in his post-Hill career, he represented companies such as PayPal and Verisign before Congress.
Mr. Harper is the co-editor of “Terrorizing Ourselves: Why U.S. Counterterrorism Policy Is Failing and How to Fix It” (Cato Institute, 2010) and the author of “Identity Crisis: How Identification Is Overused and Misunderstood” (Cato Institute, 2006). He has written several amicus briefs in Fourth Amendment cases before the U.S. Supreme Court and has published scholarly articles in a variety of law journals. In the popular press, Mr. Harper has been published in The New York Times and The Wall Street Journal, among many other publications.
Mr. Harper has a law degree from the U.C. Hastings College of the Law, where he was editor-in-chief of the Hastings Constitutional Law Quarterly, and a BA from the University of California, Santa Barbara.
Founder, Law Office of Eileen J. O'Connor PLLC
After nearly 30 years as a national tax specialist with the IRS and major accounting firms, Eileen J. O’Connor, now an attorney in private practice, was Assistant Attorney General for the Justice Department’s Tax Division for six years during the administration of President George W. Bush and a member of then-President-elect Trump’s Treasury Department Transition Team. She focuses on federal administrative and tax law.
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.
Originalism and the Good Constitution
Chicago, IllinoisConstitutional Judging: The Proper Role of the Judiciary in Enforcing Our State and Federal Constitutions
Phoenix, ArizonaSlouching Toward Mordor
Grover Joseph Rees
Slouching Toward Mordor Grover Joseph Rees* I sometimes visit a country whose government pervasively monitors...
First Principles: Are Judicial and Legislative Oversight of NSA Constitutional?
Robert F. Turner
First Principles: Are Judicial and Legislative Oversight of NSA Constitutional? Robert F. Turner* This issue...
Jameel Jaffer and Laura Murphy Testimony Before The House Committee on the Judiciary Oversight Hearing on The Administration’s Use of FISA Authorities
Laura W. Murphy, Jameel Jaffer
Before The House Committee on the Judiciary Oversight Hearing on The Administration’s Use of...
Steven G. Bradbury Testimony Before the House Committee on the Judiciary Oversight Hearing into the Administration’s Use of FISA Authorities
Steven Gill Bradbury
Before the House Committee on the Judiciary Oversight Hearing into the Administration’s Use of FISA...
Why NSA’s Bulk Data Seizures Are Illegal and Unconstitutional
Randy E. Barnett, Jim Harper
Why NSA’s Bulk Data Seizures Are Illegal and Unconstitutional Randy E. Barnett* & Jim Harper**...
Terms of Engagement - Podcast
Eileen J. O'Connor, Clark Neily
In his new book, Terms of Engagement: How Our Courts Should Enforce the Constitution's Promise of...
Terms of Engagement
TeleforumOriginalism and the Good Constitution
Des Moines, Iowa