Joseph Christopher O'Mahoney 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 to 1953 and then again from 1954 to 1961.
The 1960 United States Senate election in Wyoming was held on November 8, 1960. Incumbent Democratic Senator Joseph C. O'Mahoney was first appointed to the U.S. Senate from Wyoming's Class 1 Senate seat in 1934, and was re-elected in 1934, 1940, and 1946 before losing re-election in 1952. He was then elected to the Class 2 Senate seat in 1954. O'Mahoney, in failing health and increasingly limited in his mobility, declined to run for a fifth non-consecutive term in the Senate. The winner of this election, Keith Thomson, died before assuming his elected office.
The 1942 United States Senate election in Wyoming was held on November 3, 1942. Democratic Senator Harry Schwartz ran for re-election to his second term. He was challenged by businessman Edward V. Robertson, who emerged from a close and hotly contested Republican primary as the narrow winner. Aided in part by the national swing toward Republicans in 1942, Robertson defeated Schwartz for re-election by a decisive margin.
The 1958 United States Senate election in Wyoming took place November 4, 1958. Incumbent Republican Senator Frank A. Barrett ran for re-election to his second term. He was challenged by Gale W. McGee, a University of Wyoming professor and the Democratic nominee. Despite the state's strong Republican lean, McGee ran an energetic campaign against Barrett, earning the support of the national Democratic establishment. McGee ultimately narrowly upset Barrett, winning 51% of the vote to Barrett's 49%.
The 1924 United States Senate election in Wyoming took place on November 4, 1924. Incumbent Republican Senator Francis E. Warren ran for re-election to his sixth consecutive term in the Senate. He was challenged by Judge Robert Rose of the Eighth Judicial District of Wyoming, the Democratic nominee. The election took place on the same ballot as the presidential election, with Republican Calvin Coolidge winning Wyoming by a wide margin, and the special gubernatorial election, with Democratic Nellie Tayloe Ross similarly winning by a wide margin. Both Warren and Rose outperformed their party's presidential nominees, and Warren ultimately won re-election by a wide margin, albeit reduced from 1918. This would be Warren's last term in the Senate; he died on November 24, 1929, with a little more than a year remaining in his term. Republican Patrick Joseph Sullivan was appointed to replace him.
The 1928 United States Senate election in Wyoming took place on November 6, 1928. Democratic Senator John B. Kendrick ran for re-election to a third term. He faced Republican Congressman Charles E. Winter in the general election, and a competitive general election ensued. Kendrick ended up winning re-election by a narrow margin, with Winters's campaign likely assisted by the strong performance of Herbert Hoover in that year's presidential election. Kendrick's third term would turn out to be his last; he died while in office on November 3, 1933, about a year until the seat would next be up. Joseph C. O'Mahoney was appointed to serve out the remainder of Kendrick's term and would end up winning the ensuing election in 1934.
The 1940 United States Senate election in Wyoming took place on November 5, 1940. Democratic Senator Joseph C. O'Mahoney ran for re-election to a second full term. He faced Republican Milward Simpson, a member of 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's narrow win, and defeated Simpson in a landslide to win his second term.
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.
The 1972 United States Senate election in Wyoming was held on November 7, 1972. Incumbent Republican Senator Clifford Hansen ran for re-election to a second term. He was challenged by Democratic nominee Mike Vinich, a former aide to Congressman Teno Roncalio and a bar owner in Hudson. As Hansen ran for re-election, President Richard Nixon was overwhelmingly defeating Democratic presidential nominee George McGovern in Wyoming. Hansen managed to outperform even Nixon, winning his second term in a landslide over Vinich.
The 1970 United States Senate election in Wyoming took place on November 3, 1970. Incumbent Democratic Senator Gale W. McGee ran for re-election to his third term. In a rematch of the 1964 election, he once again faced Republican John S. Wold, who at this time represented Wyoming in the U.S. House of Representatives. 1970 proved to be a fairly strong year for Wyoming Republicans; Governor Stanley Hathaway was re-elected in a landslide and the party won all of the other statewide offices. However, McGee proved popular, and managed to increase his margin from 1964, beating Wold by a solid 56–44% margin. As of 2023, this was the last time that a Democratic candidate won a United States Senate election in Wyoming, currently the second-longest winning streak for the Republican Party, second to Kansas.
The 1950 Wyoming gubernatorial election took place on November 7, 1950. Incumbent Republican Governor Arthur G. Crane, who ascended to the governorship when Lester C. Hunt was elected to the Senate in 1948, declined to seek re-election. Congressman Frank A. Barrett won the Republican primary to succeed Crane and faced former State Auditor John J. McIntyre, the Democratic nominee, in the general election. Helped by the strong performance nationwide of the Republican Party, Barrett defeated McIntyre by a wide margin. This election was the first open-seat gubernatorial election in Wyoming since 1924.
The 1934 Wyoming gubernatorial election took place on November 6, 1934. Incumbent Democratic Governor Leslie A. Miller ran for re-election to his second term, and his first full term, following his initial election in the 1932 special election. Miller faced Republican Alonzo M. Clark, his predecessor as governor, in the general election. Despite the closeness of Miller's first election, he took advantage of the nationwide Democratic landslide and easily defeated Clark.
The 1954 United States Senate elections in Wyoming took place on November 2, 1954. Incumbent Democratic Senator Lester C. Hunt, who decided not to be a candidate for re-election, committed suicide by firearm on June 19, 1954, and Republican Governor Clifford J. Rogers appointed former state highway commissioner Edward D. Crippa to replace him. Two elections for the Senate seat were held on the same day; one as a special election to fill the remainder of Hunt's original six-year term, and another to select a Senator to serve the next six-year term. Senator Crippa did not run for re-election.
A general election was held in the U.S. state of Wyoming on Tuesday, November 4, 1930. All of the state's executive officers—the Governor, Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction—were up for election. Republicans narrowly held onto the Governor's office and won every other state office.
A general election was held in the U.S. state of Wyoming on Tuesday, November 6, 1934. All of the state's executive officers—the Governor, Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction—were up for election. In the 1932 gubernatorial special election, the Democratic candidate, Leslie A. Miller, won and ran for re-election for a full term in 1934. The Democratic Party also won elections for Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction, flipping those offices from the Republican Party.
A general election was held in the U.S. state of Wyoming on Tuesday, November 7, 1950. All of the state's executive officers—the governor, secretary of state, auditor, treasurer, and superintendent of public instruction—were up for election. The Republican Party swept all of the offices. Following Democratic governor Lester C. Hunt's election to the U.S. Senate in 1948, Republican secretary of state Arthur G. Crane had been acting as governor. Republican Congressman Frank A. Barrett was elected governor, and Republican candidates won the other statewide races.
A general election was held in the U.S. state of Wyoming on Tuesday, November 7, 1962. All of the state's executive officers—the Governor, Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction—were up for election. Republicans ran the table on the state's executive offices, defeating incumbent Governor Jack R. Gage and incumbent Superintendent Velma Linford and picking up the Secretary of State's office. Republican State Auditor Minnie A. Mitchell was re-elected and Republicans also held the Treasurer's office.
A general election was held in the U.S. state of Wyoming on Tuesday, November 8, 1966. All of the state's executive officers—the Governor, Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction—were up for election. After winning all of the statewide executive offices in 1962, Republicans did even better in 1966, improving their margins of victory in each race and holding all the offices.
A general election was held in the U.S. state of Wyoming on Tuesday, November 7, 1922. All of the state's executive officers—the Governor, Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction—were up for election. Democrats improved considerably from their performances in 1918, with William B. Ross winning the gubernatorial election and almost all of their statewide candidates outpacing their 1918 nominees. However, Republicans held all of the other statewide offices.
A general election was held in the U.S. state of Wyoming on Tuesday, November 5, 1918. All of the state's executive officers—the Governor, Secretary of State, Auditor, Treasurer, and Superintendent of Public Instruction—were up for election. Republicans won all statewide offices by wide margins, and with Robert D. Carey's defeat of Frank L. Houx, picked up the governorship following two consecutive losses to Democrats.
