ALI Council
Elected Member

Peter D. Keisler

Washington, DC
Sidley Austin LLP
Yale University
Yale Law School

Peter D. Keisler, former Acting Attorney General in the Department of Justice, is Senior Counsel in the Washington, D.C. office of Sidley Austin. A former co-chair of Sidley’s Supreme Court and Appellate Practice who also served as a member of the firm’s Executive Committee, Peter has argued before the United States Supreme Court, the federal Courts of Appeals and District Courts, and in state court on behalf of both private-sector clients and the United States Government.

He served as Assistant Attorney General for the Civil Division in the Department of Justice in the George W. Bush Administration and as Associate Counsel to the President in the Reagan Administration, and as a member of the Standing Committee on Rules of Practice and Procedure and of the Advisory Committee on Civil Rules.

Peter also served as a law clerk to Justice Anthony Kennedy of the United States Supreme Court and Judge Robert Bork of the United States Court of Appeals for the District of Columbia Circuit. He is a graduate of Yale College and Yale Law School.

 Peter D. Keisler Image
Areas of Expertise
Administrative Law
Commercial Law
Energy Law
Environmental Law