Theodore Fulton Stevens is the senior United States Senator from Alaska. As the longest serving Republican in the Senate, Stevens served as President pro tempore from January 3, 2003, to January 3, 2007.

Stevens has had a six-decade career of government service, beginning with his service in World War II. In the 1950s, he held senior positions in the Eisenhower Interior Department. He has served continuously in the Senate since December 1968.