1978 Colorado U.S. Senate Election

Colorado · 4 candidates · See every 1978 U.S. Senate race

Who won the 1978 Colorado U.S. Senate Election?

William L. Bill Armstrong won the 1978 Colorado U.S. Senate Election. William L. Bill Armstrong received 480,801 popular votes (58.69%). The main challenger was Floyd K. Haskell (40.3%).

See the full head-to-head between Armstrong and Haskell

Armstrong +18.4 pts · won by 150,653 votes

William L. Bill Armstrong RepublicanWINNER58.69%

480,801 votes

Floyd K. Haskell Democratic40.3%

330,148 votes

Vedder V DronUnited States Party0.71%

5,789 votes

John ShueNational Statesman0.31%

2,518 votes

Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.