Ian Heath Gershengorn

Ian Heath Gershengorn

Mr. Gershengorn is a partner in the Washington, D.C. office of Jenner & Block. He is chair of the firm’s Appellate and Supreme Court Practice and is one of the nation’s premier Supreme Court and appellate advocates. Before joining the firm in 2017, he served in the Office of the Solicitor General at the U.S. Department of Justice, first as Principal Deputy Solicitor General and then as Acting Solicitor General of the U.S. Mr. Gershengorn’s practice focuses on advising clients on a range of complex litigation and strategy problems, with particular emphasis on commercial disputes and challenges involving government, regulatory, and other public policy issues.

While at the Solicitor General’s Office, Mr. Gershengorn argued more than a dozen cases at the U.S. Supreme Court. He also supervised the government’s briefing in a range of high-profile cases, including those involving the Affordable Care Act, Dodd-Frank, election law and redistricting, immigration reform, the Fair Housing Act, Title VII, the Religious Freedom Restoration Act, and same-sex marriage.

Prior to his service in the Solicitor General’s office, Mr. Gershengorn served from 2009 to 2013 as the Deputy Assistant Attorney General in charge of the DOJ’s Federal Programs Branch. In that role, he led the district court defense of the Affordable Care Act, personally arguing the principal district court challenges to the constitutionality of the Act. He also supervised the defense of federal agencies, the president, cabinet officers, and other government officials in challenges to major regulatory and policy initiatives, including those relating to financial regulation, immigration, executive privilege, and national security matters.

From 1997 to 2009, Mr. Gershengorn practiced as an associate and then as a partner at Jenner & Block. He focused on U.S. Supreme Court and federal appellate litigation, with a particular focus on telecommunications, media, Native American law, and business litigation.

Mr. Gershengorn started his career at the U.S. Department of Justice, serving as counsel to Deputy Attorney General Jamie S. Gorelick and then as assistant to Attorney General Janet Reno. He received his J.D. magna cum laude from Harvard Law School, where he was an editor of the Harvard Law Review. After law school, Mr. Gershengorn served as a law clerk, first for Judge Amalya L. Kearse of the US Court of Appeals for the Second Circuit, and then for retired Associate Justice John Paul Stevens of the U.S. Supreme Court.