The 1964 United States Senate election in Montana took place on November 3, 1964. Incumbent United States Senator Mike Mansfield, who was first elected to the Senate in 1952 and was re-elected in 1958, ran for re-election. Mansfield won the Democratic primary in a landslide, and advanced to the general election, where he faced Alex Blewett, the Majority Leader of the Montana House of Representatives and the Republican nominee. Though Mansfield's margin was quite reduced from 1958, he still overwhelmingly defeated Blewett and won his third term in the Senate in a landslide.
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 County results Mansfield: 50–60% 60–70% 70–80% Blewett: 50-60% | |||||||||||||||||
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Democratic primary
editCandidates
edit- Mike Mansfield, incumbent United States Senator
- Joseph P. Monaghan, former United States Congressman from Montana's 1st congressional district, 1936 independent candidate for the United States Senate
Results
edit| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Mike Mansfield (inc.) | 109,904 | 85.51 | |
| Democratic | Joseph P. Monaghan | 18,630 | 14.49 | |
| Total votes | 128,534 | 100.00 | ||
Republican primary
editCandidates
edit- Alex Blewett, Majority Leader of the Montana House of Representatives
- Lyman Brewster, rancher
- Antoinette F. Rosell, State Representative
Results
edit| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Alex Blewett | 31,934 | 59.37 | |
| Republican | Lyman Brewster | 12,375 | 23.01 | |
| Republican | Antoinette F. Rosell | 9,480 | 17.62 | |
| Total votes | 53,789 | 100.00 | ||
General election
editResults
edit| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Mike Mansfield (inc.) | 180,643 | 64.51% | −11.71% | |
| Republican | Alex Blewett | 99,367 | 35.49% | +11.71% | |
| Majority | 81,276 | 29.03% | −23.41% | ||
| Turnout | 280,010 | ||||
| Democratic hold | Swing | ||||
References
edit- ^ a b "Report of the Official Canvass of the Vote Cast at the Primary Election Held in the State of Montana, June 2, 1964". Montana Secretary of State. Retrieved July 2, 2014.
- ^ "Statistics of the Presidential and Congressional Election of November 3, 1964" (PDF). Clerk of the United States House of Representatives. Retrieved July 4, 2014.