Jonathan Hacker

Partner

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Jon Hacker chairs O’Melveny’s Supreme Court and Appellate Practice and resides in the DC office.

Jon has authored briefs in dozens of US Supreme Court cases at both the merits and certiorari stages. He has argued five cases in the US Supreme Court and appeals in every federal circuit. He has also briefed and argued appeals in numerous state courts, including New York, California, Ohio, Pennsylvania, Florida, Massachusetts, New Jersey, Maine, Montana, Nebraska, and the District of Columbia. Jon’s appellate work has resulted in reversals of trial-court judgments (including jury verdicts) worth tens of millions and even billions of dollars. He has also briefed and argued many trial-level matters, has conducted discovery and depositions in complex litigation matters, and has handled several trials. Jon’s areas of expertise include federal constitutional law, insurance, ERISA, criminal law and procedure, and federal jurisdiction and procedure.

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Honors & Awards

  • Recognized by Best Lawyers® 2020 for Appellate Practice in Washington, DC; Jonathan has been listed in Best Lawyers® since 2010.
  • Repeatedly selected as a leading US appellate lawyer by Chambers, Legal 500
  • “Local Litigation Star,” Benchmark Litigation (2018-2020)
  • “Litigator of the Week,” The American Lawyer (August 2015)
  • “Rising Appellate Star,”  The Wall Street Journal (January 2011)
  • “Appellate Lawyer of the Week,” National Law Journal (2011)

Admissions

Bar Admissions

  • District of Columbia
  • Maryland

Court Admissions

  • US Supreme Court
  • All federal circuit courts of appeal
  • US District Court, District of Columbia and District of Maryland

Education

  • University of Michigan, J.D., 1995:  magna cum laude; Order of the Coif; Henry M. Campbell Memorial Scholarship (Law School’s highest award for graduates); Managing Editor, 1994-95, Associate Editor, 1993-94, Michigan Law Review; Winner, Campbell Moot Court Competition, 1994
  • Harvard College, A.B., 1990 (Social Studies): cum laude

Professional Activities

Clerkships

  • Honorable Bruce M. Selya, US Court of Appeals, First Circuit

Member

  • Co-Chair, National Association of Criminal Defense Lawyers, Supreme Court Amicus Committee
  • Barrister, Edward Coke Appellate Inn of Court

Co-Founder and Co-Director

  • HLS Supreme Court and Appellate Advocacy Clinic, Harvard Law School

Press Releases

In the News

Alerts and Publications