The 1978 United States Senate election in Colorado took place on November 7, 1978. Incumbent Democratic Senator Floyd Haskell ran for re-election to a second term, but was soundly defeated by Republican U.S. Representative William L. Armstrong.
Republican primary Candidates William L. Armstrong, U.S. Representative from Littleton Jack Swigert, astronaut
Withdrew John Cogswell, lawyer and Bob Dole aide (endorsed Armstrong)
Results
General election Results
See also 1978 United States Senate elections
References