1978 United States Senate election in Oklahoma

David Lyle Boren is a retired American lawyer and politician from Oklahoma. A member of the Democratic Party, he served as 21st governor of Oklahoma from 1975 to 1979 and three terms in the United States Senate from 1979 to 1994. A conservative Democrat, to date, he is the last in his party to have served as U.S. Senator from Oklahoma. He was the 13th and second-longest serving president of the University of Oklahoma from 1994 to 2018. He was the longest serving chairman of the Senate Select Committee on Intelligence. On September 20, 2017, Boren officially announced his retirement as president of the University of Oklahoma, effective June 30, 2018.

Edmond Augustus Edmondson was an American World War II veteran, lawyer, and politician from Oklahoma. He served 10 terms in the U.S. House of Representatives from 1953 to 1973. He was defeated in U.S. Senate elections in Oklahoma three times in 1972, 1974, and 1978.

Muskogee is the thirteenth-largest city in Oklahoma and the county seat of Muskogee County. Home to Bacone College, it lies approximately 48 miles (77 km) southeast of Tulsa. The population of the city was 36,878 as of the 2020 census, a 6.0 percent decrease from 39,223 in 2010.

McAlester is the county seat of Pittsburg County, Oklahoma. The population was 18,363 at the time of the 2010 census, a 3.4 percent increase from 17,783 at the 2000 census. The town gets its name from James Jackson McAlester, an early white settler and businessman who later became lieutenant governor of Oklahoma. Known as "J. J.", McAlester married Rebecca Burney, the daughter of a full-blood Chickasaw family, which made him a citizen of the Chickasaw Nation.

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.

David Lyle Boren is a retired American lawyer and politician from Oklahoma. A member of the Democratic Party, he served as 21st governor of Oklahoma from 1975 to 1979 and three terms in the United States Senate from 1979 to 1994. A conservative Democrat, to date, he is the last in his party to have served as U.S. Senator from Oklahoma. He was the 13th and second-longest serving president of the University of Oklahoma from 1994 to 2018. He was the longest serving chairman of the Senate Select Committee on Intelligence. On September 20, 2017, Boren officially announced his retirement as president of the University of Oklahoma, effective June 30, 2018.

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.