Our Team
Randy E. Barnett 
Faculty Director
Randy E. Barnett is the Patrick Hotung Professor of Constitutional Law at the Georgetown University Law Center and is 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 include thirteen books, more than one hundred and fifty articles and reviews, as well as numerous op-eds. His most recent book is A Life for Liberty: The Making of an American Originalist (2024). His other books on the Constitution include: 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 (4th ed. 2021) (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, including PBS’s Constitution USA with Peter Sagal and A More or Less Perfect Union with Judge Douglas Ginsburg; and he portrayed a prosecutor in the 2010 science-fiction feature film, InAlienable: The Movie. He blogs on the Volokh Conspiracy.
Stephanie Barclay
Faculty Co-Director
Stephanie Barclay is a Professor of Law at Georgetown Law School, and the Faculty Co-Director of the Georgetown Center for the Constitution. Her research focuses on the role our different democratic institutions play in protecting minority rights, particularly at the intersection of free speech and religious exercise. Barclay‘s work is published or is forthcoming in leading journals such as the Harvard Law Review, the Chicago Law Review, the University of Pennsylvania Law Review, and the Yale Law Journal Forum. Her article, “An Economic Approach to Religious Exemptions,” was selected for the 2020 Stanford/Harvard/Yale Junior Faculty Forum.
Prior to joining Georgetown, Barclay was twice voted Professor of the Year. Barclay has also litigated constitutional cases at both the trial and appellate level, including before the U.S. Supreme Court. Barclay served as a law clerk to Judge N. Randy Smith on the U.S. Court of Appeals for the Ninth Circuit, and to Justice Neil M. Gorsuch of the U.S. Supreme Court.
Barclay is a Faculty Affiliate at the Constitutional Law Center at Stanford Law School; and a Nootbaar Fellow at the Nootbaar Institute on Law, Religion, and Ethics at Pepperdine University. She has served as the Chair for the AALS Law and Religion Section, and she currently serves as a Research Associate for the Centre for Constitutional Law and Legal Studies at the University of British Columbia, and on the Steering Committee for the Quill Project at Pembroke College. She graduated summa cum laude from BYU Law School, where she was elected to the Order of the Coif. She is completing a Ph.D. in Law at Oxford University as a Clarendon Scholar and a Tang Scholar.
Matthew Mangiaracina
Program Director
Matthew Mangiaracina is Program Director of the Georgetown Center for the Constitution. He previously worked as Associate Director for the Project on Constitutional Originalism and the Catholic Intellectual Tradition (CIT) at the Catholic University of America’s Columbus School of Law under CIT Co-Directors Joel Alicea and Kevin Walsh. He also served as the Assistant Secretary of Community Planning and Development in the U.S. Department of Housing and Urban Development, and as White House Liaison for the U.S. Department of the Interior. He is a graduate of Florida State University and lives in Maryland with his wife and four daughters.
Arielle Vertsman
Program Manager
Arielle is the Program Manager and a second-year evening student at Georgetown Law. She graduated from the University of Maryland, College Park in 2020 with a major in Government and Politics and a minor in Spanish Heritage Language, Culture and Professional Contexts. After graduating from college, Arielle worked as an advertising professional at the Omnicom Media Group, one of the largest global media, marketing, and communications companies before going on to join Infillion, an advertising technology firm in New York City. She is an avid skier and Broadway enthusiast.
Yonatan Green
Fellow
Yonatan Green is co-founder and former Executive Director of the Israel Law & Liberty Forum, a Tikvah Fund project promoting conservative legal thought and the rule of law in Israel. His research interests include Israeli jurisprudence, comparative constitutional law and political theory. Yonatan is a licensed attorney in Israel and in the State of New York. He obtained a joint degree in Law and Communications from the Hebrew University of Jerusalem. He has previously worked as an associate attorney in the Jerusalem-based firm of Ephraim Abramson & Co. Law Offices, and as a project manager and product manager at Israeli tech firm Mobileye, a global leader in autonomous driving and driver assistance technology. He was formerly a policy researcher at the Kohelet Policy Forum. Yonatan has been published and quoted in a variety of academic, intellectual and news outlets, in English and in Hebrew, including The Federalist Society Review, Liberty Law Talk podcast, National Review, Mishpatim (Hebrew University) Law Review, the Times of Israel, the Jerusalem Post, CNN, Mosaic, Haaretz, Israel Today, Hashiloach, France 3, and the “Unholy” podcast. His work has been cited by the Israeli Supreme Court. He is married and a proud father of three.