1946 United States Senate election in Wyoming

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.

1946 United States Senate election in Wyoming

← 1940 November 5, 1946 1952 →

Nominee Joseph C. O'Mahoney Harry B. Henderson Party Democratic Republican Popular vote 45,843 35,714 Percentage 56.21% 43.79%

County results O'Mahoney:      50–60%      60–70% Henderson:      50–60%      60–70%

U.S. senator before election Joseph C. O'Mahoney Democratic Elected U.S. Senator Joseph C. O'Mahoney Democratic

Democratic primary

Candidates

• Joseph C. O'Mahoney, incumbent U.S. Senator

Results

Democratic primary^[1]

Party		Candidate	Votes	%
	Democratic	Joseph C. O'Mahoney (inc.)	17,589	100.00%
Total votes			17,589	100.00%

Republican primary

Candidates

• Harry B. Henderson, former chairman of the Republican Party of Wyoming, former state senator, 1940 Republican candidate for the U.S. Senate^[2]

Results

Republican primary^[1]

Party		Candidate	Votes	%
	Republican	Harry B. Henderson	22,757	100.00%
Total votes			22,757	100.00%

General election

Results

1946 United States Senate election in Wyoming^[1]

Party		Candidate	Votes	%	±%
	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

References

1. Crane, A.G. (1947). 1947 Official Directory of Wyoming and 1946 Election Returns. pp. 76–81.
2. "Harry B. Henderson Will Run for U.S. Senate". Casper Star-Tribune. Casper, Wyo. May 23, 1946. p. 1.