Nicholas Longworth (acting)John Weeks
Charles Curtis
Simeon Fess (acting)Charles Curtis
Simeon Fess
Arthur Vandenberg
Joseph Martin
John Diefenbaker
Gerald Ford
Richard Nixon
Newt Gingrich
Trent Lott (acting)Newt Gingrich
Dennis Hastert
John Boehner (acting)Dennis Hastert
John McCain
John Bush