John Yoo is the Emanuel Heller Professor of Law. He is also the Thomas Smith Senior Research Fellow, Civitas Institute, at the University of Texas at Austin. He is also a Nonresident Senior Fellow at the American Enterprise Institute.
His most recent book, The Politically Incorrect Guide to the Supreme Court, co-authored with Robert Delahunty, was published in 2023. Professor Yoo’s other books include Defender-in-Chief: Trump’s Fight for Presidential Power; Striking Power: How Cyber, Robots, and Space Weapons Change the Rules for War, Point of Attack: Preventive War, International Law, and Global Welfare, and Crisis and Command: A History of Executive Power from George Washington to George Bush.
He is a co-author of volumes 1 and 2 of R. Rossum, G. Tarr, V. Munoz & J. Yoo American Constitution Law (Taylor & Francis: 2026), and a co-editor of the eight volume series on the 250th anniversary of the American Revolution, We Hold These Truths, with Yuval Levin and Adam White of the American Enterprise Institute.
Professor Yoo has published more than 100 articles in academic journals on subjects including national security, constitutional law, international law, and the Supreme Court. He also regularly contributes to the editorial pages of the Wall Street Journal, New York Times, Washington Post, Los Angeles Times, and National Review, among others.
Professor Yoo has served in all three branches of government. He was an official in the U.S. Department of Justice, where he worked on national security and terrorism issues after the 9/11 attacks. He served as general counsel of the U.S. Senate Judiciary Committee. He has been a law clerk for Supreme Court Justice Clarence Thomas and federal appeals Judge Laurence Silberman. He has been a visiting professor at the University of Texas at Austin’s School of Civic Leadership, Seoul National University, the Interdisciplinary Center Herzliya, Keio University, Trento University, the University of Chicago, and the Free University of Amsterdam.
Professor Yoo supervises the Public Law and Policy Program and the California Constitution Center. He also serves on the boards of Founding Forward, the Washington Legal Foundation, the Pacific Legal Foundation, the Ulysses Grant Institute, the Federalist Society’s Separation of Powers and Federalism Division, the Universidad Cientifica del Sur Law School, and the Asia-Pacific Law Institute at Seoul National University. He is a winner of the Federalist Society’s Paul Bator award and the Heritage Foundation’s Edwin Meese III Originalism Lectureship.
Professor Yoo graduated from Yale Law School and summa cum laude from Harvard College.
Education
A.B., Harvard University (1989)
J.D., Yale University (1992)
John Choon Yoo is teaching the following course in Fall 2026:
• 220SP sec. 1 - Advanced Constitutional Law: Separation of Powers
Courses During Other Semesters
| Semester | Course Num | Course Title |  Teaching Evaluations | Fall 2025 | 220E sec. 001 | Advanced Constitutional Law: Federalism | View Teaching Evaluation | 221.2 sec. 001 | Presidents and Policy | View Teaching Evaluation | Spring 2025 | 220.16 sec. 001 | Natural Law | View Teaching Evaluation |
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