1934 United States Senate elections in Wyoming

The 1934 United States Senate elections in Wyoming took place on November 6, 1934. Incumbent Democratic Senator John B. Kendrick died on November 3, 1933, and Joseph C. O'Mahoney was appointed by Governor Leslie A. Miller as Kendrick's replacement. Two elections for the same Senate seat were held on the same day; one as a special election to fill the remainder of Kendrick's original six-year term, and another to select a Senator to serve the next six-year term. O'Mahoney ran for re-election in both elections. He was opposed by Republican Congressman Vincent Carter. Aided by the strong performance by the Democratic Party throughout the country in 1934, and by Governor Miller's landslide re-election, O'Mahoney handily defeated Carter to win re-election.

1934 United States Senate elections in Wyoming

← 1928 November 6, 1934 1940 →

Nominee Joseph C. O'Mahoney Vincent Carter Party Democratic Republican Popular vote 53,806 40,819 Percentage 56.62% 42.96%

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

Regular election

Democratic primary^[1]

Party		Candidate	Votes	%
	Democratic	Joseph C. O'Mahoney (inc.)	25,012	100.00%
Total votes			25,012	100.00%

Special election

Special Democratic primary^[1]

Party		Candidate	Votes	%
	Democratic	Joseph C. O'Mahoney (inc.)	25,088	100.00%
Total votes			25,088	100.00%

Republican primary

Candidates

• Vincent Carter, U.S. Congressman from Wyoming's at-large congressional district
• J. Elmer Brock, Vice-President of the Wyoming Stock Growers Association^[2]
• Harry P. Ilsley, Judge on the Seventh Judicial District of Wyoming^[3] (only filed for the regular election)
• M. A. Underwood, rancher^[4] (only filed for the regular election)

Dropped out

• Charles E. Winter, former U.S. Congressman from Wyoming's at-large congressional district (running for Congress)^[5]

Results

Regular election

Republican primary^[1]

Party		Candidate	Votes	%
	Republican	Vincent Carter	19,842	57.58%
	Republican	J. Elmer Brock	6,844	19.86%
	Republican	Harry P. Ilsley	6,683	19.39%
	Republican	M. A. Underwood	1,093	3.17%
Total votes			34,462	100.00%

Special election

Special Republican primary^[1]

Party		Candidate	Votes	%
	Republican	Vincent Carter	23,112	70.38%
	Republican	J. Elmer Brock	9,728	29.62%
Total votes			32,840	100.00%

General election

Results

Regular election

1934 United States Senate election in Wyoming^[1]

Party		Candidate	Votes	%	±%
	Democratic	Joseph C. O'Mahoney (inc.)	53,806	56.62%	+3.13%
	Republican	Vincent Carter	40,819	42.96%	−3.14%
	Socialist	Joseph N. Lunn	401	0.42%	+0.01%
Majority			12,987	13.67%	+6.26%
Turnout			95,026
	Democratic hold

Special election

1934 United States Senate special election in Wyoming^[1]

Party		Candidate	Votes	%	±%
	Democratic	Joseph C. O'Mahoney (inc.)	53,859	56.88%	+3.39%
	Republican	Vincent Carter	40,825	43.12%	−2.97%
Majority			13,034	13.77%	+6.36%
Turnout			94,684
	Democratic hold