Jonathan Massey

Jonathan Massey is a founding partner of Massey & Gail and a nationally recognized appellate and strategic litigation lawyer with more than three decades of experience managing high-stakes matters nationwide.

Jonathan focuses on complex litigation involving cutting-edge legal questions. He represents clients before trial and appellate courts across the country, including the Supreme Court of the United States. Clients turn to Jonathan for clear legal framing, strategic judgment, and credibility in cases where legal questions will drive the outcome. He also has an extensive practice of counseling clients on sensitive matters outside the litigation context.

Jonathan has argued more than 70 cases in federal and state courts, including three before the Supreme Court, and has filed over 90 briefs in the Court. His practice also includes representing clients before the U.S. Department of Justice, Federal Communications Commission, Federal Trade Commission, Environmental Protection Agency, and other agencies, particularly in matters involving overlapping litigation and regulatory risk.

His experience spans antitrust, telecommunications, financial services, securities, intellectual property, tax, environmental law, and constitutional issues. His clients include leading corporations, universities, foreign governments, U.S. states, and senior public officials, including former Vice President Al Gore in Bush v. Gore.

Jonathan served as a law clerk to Justice William J. Brennan, Jr. of the Supreme Court of the United States and Judge Abner J. Mikva of the U.S. Court of Appeals for the D.C. Circuit. He later served as Deputy Special Counsel to Independent Counsel Lawrence Walsh.

While at Harvard Law School, he served as a research assistant to Laurence Tribe and was an editor of the Harvard Law Review. He has taught appellate advocacy and related subjects at Harvard Law School and Georgetown University Law Center and has served as an instructor for the D.C. Bar. He is an elected member of The American Law Institute.