Dwight D. Eisenhower 1953–1961
	John F. Kennedy 1961–1963
	Lyndon B. Johnson 1963–1969
	Richard M. Nixon 1969–1974
	Gerald R. Ford 1974–1977
	Jimmy Carter 1977–1981
	Ronald Reagan 1981–1989
	George Bush 1989–1993
	William Jefferson Clinton 1993–2001
	George W. Bush 2001–2009
	Barack Obama 2009-