George Allen
Governor of Virginia, 1994 – 1998
U.S. Senate, 2001 – 2007

Richard Armitage
Deputy Secretary of State, 2001 – 2005

James A. Baker, III
Secretary of State, 1989 – 1992

Howard Berman
U.S. House of Representatives, 1983 – 2013

James J. Blanchard
U.S. House of Representatives, 1975 – 1983

Bill Bradley
U.S. Senate, 1979 – 1997

Hillary Clinton
Secretary of State, 2009 – 2013

William Cohen
Secretary of Defense, 1997 – 2001

Norm Coleman
U.S. Senate, 2003 – 2009

Tom Daschle
U.S. Senate, 1987 – 2005

Christopher J. Dodd
U.S. Senate, 1981 – 2011

Mickey Edwards
U.S. House of Representatives, 1977 – 1993

Bill Frist
U.S. Senate, 1995 – 2007

Robert Gates
Secretary of Defense, 2006 – 2011

Sam Gejdenson
U.S. House of Representatives, 1981 – 2001

Carlos Gutierrez
Secretary of Commerce, 2005 – 2009

Stephen J. Hadley
National Security Adviser, 2005 – 2009

Lee H. Hamilton
U.S. House of Representatives, 1965 – 1999

Gary Hart
U.S. Senate, 1975 – 1987

Dennis M. Hertel
U.S. House of Representatives, 1981 – 1993

Carla Hills
U.S. Trade Representative, 1989 – 1993

Mike Johanns
U.S. Senate, 2009 – 2015

Robert Kasten, Jr.
U.S. Senate, 1981 – 1993

Tom Kean
Governor, New Jersey, 1982 – 1990

John Kerry
Secretary of State, 2013 – 2017

Henry A. Kissinger
Secretary of State, 1973 – 1977

Jim Kolbe
U.S. House of Representatives, 1985 – 2006

Joe Lieberman
U.S. Senate, 1989 – 2013

Bob Livingston
U.S. House of Representatives, 1977 – 1999

Richard Lugar
U.S. Senate, 1977 – 2013

Connie Mack,  III
U.S. Senate, 1989 – 2001

Mel Martinez
U.S. Senate, 2005 – 2009

Sam Nunn
U.S. Senate, 1972 – 1997

Paul O’Neill
Secretary of the Treasury, 2001 – 2004

Tim Pawlenty
Governor of Minnesota, 2003 – 2011

William J. Perry
Secretary of Defense, 1994 – 1997

John Edward Porter
U.S. House of Representatives, 1980 – 2001

Condoleezza Rice
Secretary of State, 2005 – 2009

Bill Richardson
Governor, New Mexico, 2003 – 2011

Tom Ridge
Secretary of Homeland Security, 2003 – 2005

Chuck Robb
U.S. Senator, 1989 – 2001

Mike Rogers
U.S. House of Representatives, 2001 – 2015

James Sasser
U.S. Senate, 1977 – 1995

Rick Santorum
U.S. Senate, 1995 – 2007
U.S. House of Representatives, 1991 – 1995

George P. Shultz
Secretary of State, 1982 – 1989

David E. Skaggs
U.S. House of Representatives, 1987 – 1999

Gordon Smith
U.S. Senate, 1997 – 2009

Lawrence Summers
Secretary of the Treasury, 1999 – 2001

John Warner
U.S. Senate (1979-2009)

J.C. Watts
U.S. House of Representatives, 1995 – 2003

Vin Weber
U.S. House of Representatives, 1981 – 1993

Alan Wheat
U.S. House of Representatives, 1983 – 1995

Timothy E. Wirth
U.S. Senate, 1987 – 1993

James Wolfensohn
World Bank President, 1995 – 2005

Robert B. Zoellick
World Bank President, 2007 – 2012