1956 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.

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 Oklahoma Republican Party is the Oklahoma state affiliate of the Republican Party (GOP). Along with the Oklahoma Democratic Party, it is one of the two major parties in the state.

Tulsa County is located in the U.S. state of Oklahoma. As of the 2020 census, the population was 669,279, making it the second-most populous county in Oklahoma, behind only Oklahoma County. Its county seat and largest city is Tulsa, the second-largest city in the state. Founded at statehood, in 1907, it was named after the previously established city of Tulsa. Before statehood, the area was part of both the Creek Nation and the Cooweescoowee District of Cherokee Nation in Indian Territory.

Shawnee is a city in Pottawatomie County, Oklahoma, United States. The population was 29,857 in 2010, a 4.9 percent increase from the figure of 28,692 in 2000. The city is part of the Oklahoma City-Shawnee Combined Statistical Area; it is also the county seat of Pottawatomie County and the principal city of the Shawnee Micropolitan Statistical Area.

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.

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."