Jennifer Mascott

Jennifer Lee "Jenn" Mascott (; born 1976) is an American lawyer and jurist serving as a United States circuit judge of the United States Court of Appeals for the Third Circuit. Prior to her judicial appointment, Mascott was a law professor whose research focused on separation of powers and litigation. She taught at the Columbus School of Law of Catholic University of America, the Antonin Scalia Law School of George Mason University (2017–2024), and the George Washington University Law School (2011–2017).

Early life and education

Mascott was born Jennifer Lee Miller in 1976 in Westminster, Maryland. She graduated from the University of Maryland, College Park with a Bachelor of Science.

Prior to entering law school she worked in communications and legislative roles for Representative Eric Cantor of Virginia and to Representative Anne Northup of Kentucky. She graduated from the George Washington University Law School in 2006, where she was a senior editor of the George Washington Law Review. From 2011 to 2013 and 2015 to 2017, she was a lecturer at George Washington University Law School and from 2015 to 2017 was an Olin/Searle Fellow at Georgetown University Law Center.

She served in the White House Counsel's Office in the second Trump presidency. On October 1, 2025, her nomination was reported from the Senate Judiciary Committee by a 12–10 party-line vote. On October 9, 2025, Mascott's nomination was confirmed by a 50–47 vote.

Selected scholarly works