Judge Duncan received his B.A. from Louisiana State University in 1994, his J.D. from the Paul M. Hebert Law Center at Louisiana State University in 1997, and his LL.M. from Columbia Law School in 2004.
After graduating from law school, he clerked for Louisiana-based Circuit Judge John Malcolm Duhé Jr. of the United States Court of Appeals for the Fifth Circuit.
From 2008–2012, Duncan served as Appellate Chief for Louisiana's Attorney General's office. From 2012–2014, he served as general counsel of the Becket Fund for Religious Liberty. From 2004-2008, he was an assistant professor of law at the University of Mississippi School of Law.
Before becoming a judge, Duncan practiced at the Washington, D.C. firm of Schaerr Duncan LLP, where he was a founding partner. He was appointed by President Trump to the United States Court of Appeals for the Fifth Circuit on May 1, 2018.
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Showcase Panel III: Lawyers, the Adversarial System, and Social Justice
2022 National Lawyers Convention
The Mayflower Hotel1127 Connecticut Ave NW
Washington, DC 20006
Classrooms, Curricula, and the Law
2021 National Lawyers Convention
The Mayflower Hotel1127 Connecticut Avenue, NW
Washington, DC 20036
Faith and the Role of the Judge
Notre Dame Student Chapter
McCartan CourtroomEck Hall of Law 1170
Notre Dame, IN 46556
Twelfth Annual Rosenkranz Debate & Luncheon
2019 National Lawyers Convention
The Mayflower Hotel1127 Connecticut Avenue, NW
Washington, DC 20036
Showcase Panel III: Lawyers, the Adversarial System, and Social Justice
2022 National Lawyers Convention
ABA Model Rule of Professional Responsibility 1.2(b) states: “A lawyer's representation of a client, including...
Showcase Panel III: Lawyers, the Adversarial System, and Social Justice
2022 National Lawyers Convention
ABA Model Rule of Professional Responsibility 1.2(b) states: “A lawyer's representation of a client, including...
Classrooms, Curricula, and the Law
2021 National Lawyers Convention
The 2021 National Lawyers Convention took place November 11-13, 2021 at the Mayflower Hotel in...
Classrooms, Curricula, and the Law
2021 National Lawyers Convention
The 2021 National Lawyers Convention took place November 11-13, 2021 at the Mayflower Hotel in...
Twelfth Annual Rosenkranz Debate & Luncheon
2019 National Lawyers Convention
RESOLVED: The Free Exercise Clause guarantees a constitutional right of religious exemption from general laws...