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.
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![]() County results Armstrong: 50–60% 60–70% 70–80% Haskell: 50–60% 60–70% 70–80% | |||||||||||||||||
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Republican primary
editCandidates
edit- William L. Armstrong, U.S. Representative from Littleton
- Jack Swigert, astronaut
Results
editParty | Candidate | Votes | % | |
---|---|---|---|---|
Republican | William L. Armstrong | 109,021 | 73.45% | |
Republican | Jack Swigert | 39,415 | 26.55% | |
Total votes | 148,436 | 100.00% |
General election
editResults
editParty | Candidate | Votes | % | ±% | |
---|---|---|---|---|---|
Republican | William L. Armstrong | 480,801 | 58.69% | 10.52 | |
Democratic | Floyd Haskell (incumbent) | 330,148 | 40.30% | 9.11 | |
Independent | Veeder V. Dorn | 5,789 | 0.71% | K.A. | |
Prohibition | John Shue | 2,518 | 0.31% | K.A. | |
Total votes | 819,256 | 100.00% |