1978 United States Senate election in Iowa

The 1978 United States Senate election in Iowa took place on November 7, 1978. Incumbent Democratic Senator Dick Clark ran for re-election to a second term but was defeated by Republican former Lieutenant Governor Roger Jepsen. This was the last time until 2014 that a Republican would win Iowa's class 2 Senate seat.

Candidates

 * Gerald Leo Baker, computer programmer and mathematician from Cedar Falls
 * Dick Clark, incumbent Senator
 * Robert L. Nereim, resident of Des Moines and candidate for Senate in 1966

Results
Following his defeat, Gerald Leo Baker announced an independent campaign for the general election.

Candidates

 * Joe Bertroche
 * Roger Jepsen, former Lieutenant Governor of Iowa
 * Maurie Van Nostrand