The 1946 United States Senate election in Wyoming took place on November 5, 1946. Democratic Senator Joseph C. O'Mahoney ran for re-election to a third term. In the general election, he faced Republican Harry B. Henderson, the former Chairman of the Republican Party of Wyoming and a former State Senator. Despite the strong performance of the Republican Party nationally, O'Mahoney's popularity was strong enough for him to win re-election yet again by a wide margin, though slightly narrower than his 1940 re-election.
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Party | Candidate | Votes | % | |
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Democratic | Joseph C. O'Mahoney (inc.) | 17,589 | 100.00% | |
Total votes | 17,589 | 100.00% |
Party | Candidate | Votes | % | |
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Republican | Harry B. Henderson | 22,757 | 100.00% | |
Total votes | 22,757 | 100.00% |
Party | Candidate | Votes | % | ±% | |
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Democratic | Joseph C. O'Mahoney (inc.) | 45,843 | 56.21% | -2.53% | |
Republican | Harry B. Henderson | 35,714 | 43.79% | +2.53% | |
Majority | 10,129 | 12.42% | -5.05% | ||
Turnout | 81,557 | ||||
Democratic hold |