No political experience information on file.

No caucus information on file.

Senior Judge, United States Court of Appeals, District of Columbia Circuit, 2005-present

Judge, United States Court of Appeals, District of Columbia Circuit, 1980-1994, 2001-2005

Chief Judge, United States Court of Appeals, District of Columbia Circuit, 1994-2001

Vice President, National Academy of Arbitrators, 1971-1980

Confirmed by the United States Senate, Judge, United States Court of Appeals, District of Columbia Circuit, February 20, 1980

Professor of Law, University of Michigan Law School,, 1970-1975, 1977-1980

Nominated by President Jimmy Carter, Judge, United States Court of Appeals, District of Columbia Circuit, December 6, 1979

Professor of Law, Harvard Law School, 1975-1977

Attorney, Seyfarth, Shaw, Fairweather & Geraldson, 1965-1970

Member, American Academy of Arts and Sciences, present

Fellow, American Bar Foundation, present

Member, American Law Institute, present

Member, Committee on Science, Technology, and Law, National Academy of Sciences, present

Member, Institute for Judicial Administration Board of Directors, New York University School of Law, present

Former Chair, Amtrak Board of Directors

Former Co-Chair, Committee on Identifying the Needs of the Forensic Science Community, National Academy of Sciences

Former Member, Executive Committee, Association of American Law Schools

Former Member, Executive Committee, Order of the Coif

Former Vice President, National Academy of Arbitrators

Member, Judicial Conference of the United States, 1994-2001

Chair, Board of Trustees, National Railroad Passenger Corporation, 1978-1980