The 1940 United States Senate election in Wyoming took place on November 5, 1940. Democratic Senator

Joseph C. O'Mahoney Joseph Christopher O'Mahoney (November 5, 1884December 1, 1962) was an American journalist, lawyer, and politician. A Democrat, he served four complete terms as a U.S. Senator from Wyoming on two occasions, first from 1934-1953 and then again fro ...

ran for re-election to a second full term. He faced Republican Milward Simpson, a member of the

University of Wyoming The University of Wyoming (UW) is a public land-grant research university in Laramie, Wyoming. It was founded in March 1886, four years before the territory was admitted as the 44th state, and opened in September 1887. The University of Wyoming ...

Board of Trustees and a former State Representative, in the general election. Though the presidential election in Wyoming was relatively close, O'Mahoney outperformed President

Franklin D. Roosevelt Franklin Delano Roosevelt (; ; January 30, 1882April 12, 1945), often referred to by his initials FDR, was an American politician and attorney who served as the 32nd president of the United States from 1933 until his death in 1945. As the ...

's narrow win, and defeated Simpson in a landslide to win his second term.

Democratic primary

Candidates

, incumbent U.S. Senator * Cecil W. Clark, former Weston County Prosecuting Attorney

Results

Republican primary

Candidates

* Milward Simpson, member of the

Board of Trustees, former State Representative * Harry B. Henderson, Jr., State Senator * Charles E. Winter, former U.S. Congressman * Irving W. Dinsmore, former State Senator * R. R. Crow, State Representative

Results

General election

Results

References

{{DEFAULTSORT:1940 United States Senate Election In Wyoming United States Senate elections in Wyoming

Wyoming Wyoming () is a state in the Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the s ...

United States Senate The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States. The composition and pow ...