Justin R. Walker


Justin practices commercial litigation, with a focus on appellate law.

He serves as an assistant professor at the University of Louisville Brandeis School of Law, where he researches issues, including the separation of powers, national security law, and federal courts. He has also taught law in Germany and Finland, and he frequently speaks about the U.S. Supreme Court across the country and on cable news. He previously clerked for Justice Anthony Kennedy on the U.S. Supreme Court, and for Justice Brett Kavanaugh during his time on the U.S. Court of Appeals for the D.C. Circuit. In 2011, he was named to Forbes’ “30 Under 30” list for Law and Public Policy.


  • Harvard Law School  (J.D., magna cum laude, 2009)
  • Duke University  (B.A., summa cum laude, 2004)
    • Political Science

Bar Admissions

  • Kentucky
  • District of Columbia

Court Admissions

  • U.S. Court of Appeals for the Sixth Circuit
  • U.S. Court of Appeals for the District of Columbia Circuit


  • Global Game Changers Children’s Educational Initiative, executive director
  • Federalist Society
    • International and National Security Law Practice Group, Executive Committee 
    • Louisville Chapter, Executive Committee 


  • Forbes’ “30 Under 30” for Law and Public Policy (2011)