1950 United States Senate election in Oklahoma

Almer Stillwell "Mike" Monroney was an American politician who served as a United States senator from Oklahoma from 1951 to 1969, and previously as the United States representative for Oklahoma's 5th congressional district from 1939 until 1951. A member of the Democratic Party, Monroney was the last Democrat to hold Oklahoma’s Class 3 Senate seat.

John William Elmer Thomas was a native of Indiana who moved to Oklahoma Territory in 1901, where he practiced law in Lawton. After statehood, he was elected to the first state senate, representing the Lawton area. Representative and a Senator from Oklahoma. In 1922, he ran successfully on the Democratic Party ticket for the U.S. House of Representatives. He was the Democratic nominee for the U.S. Senate in 1926; he won this race and held the seat until 1950, when he lost the party nomination to A.S. (Mike) Monroney. Thomas returned to a private law practice in Washington, D.C., and in 1957 moved his practice back to Lawton, where he died in 1965.

The Democratic Party is one of two major contemporary political parties in the United States. Founded in 1828, it was predominantly built by Martin Van Buren, who assembled politicians in every state behind war hero Andrew Jackson, making it the world's oldest active political party. Its main political rival has been the Republican Party since the 1850s, with both parties being big tents of competing and often opposing viewpoints. Modern American liberalism — a variant of social liberalism — is the party's majority ideology. The party also has notable centrist, social democratic, and left-libertarian factions.

The Democratic Party is one of two major contemporary political parties in the United States. Founded in 1828, it was predominantly built by Martin Van Buren, who assembled politicians in every state behind war hero Andrew Jackson, making it the world's oldest active political party. Its main political rival has been the Republican Party since the 1850s, with both parties being big tents of competing and often opposing viewpoints. Modern American liberalism — a variant of social liberalism — is the party's majority ideology. The party also has notable centrist, social democratic, and left-libertarian factions.

Almer Stillwell "Mike" Monroney was an American politician who served as a United States senator from Oklahoma from 1951 to 1969, and previously as the United States representative for Oklahoma's 5th congressional district from 1939 until 1951. A member of the Democratic Party, Monroney was the last Democrat to hold Oklahoma’s Class 3 Senate seat.

The Republican Party, also referred to as the GOP, is one of the two major contemporary political parties in the United States. The GOP was founded in 1854 by anti-slavery activists who opposed the Kansas–Nebraska Act, which allowed for the potential expansion of chattel slavery into the western territories. It has been the main political rival of the Democratic Party since the mid-1850s. Like them, the Republican Party is a big tent of competing and often opposing ideologies. Presently, the Republican Party contains prominent conservative, centrist, populist, and right-libertarian factions.

In political science, voter turnout is the participation rate of a given election. This is typically either the percentage of registered voters, eligible voters, or all voting-age people. According to Stanford University political scientists Adam Bonica and Michael McFaul, there is a consensus among political scientists that "democracies perform better when more people vote."