2020 United States House of Representatives elections in Oklahoma

As of the 2010 census, there are five United States congressional districts in Oklahoma. It was one of the states that was able to keep the same number of congressional districts from the previous census. Following the 2018 elections, a Democratic challenger ousted a Republican incumbent, changing the congressional delegation to a 4-1 Republican majority. The Republicans regained the seat in 2020 when Stephanie Bice defeated Horn. Along with Vermont & Delaware, Oklahoma has never gained a congressional 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.

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.

Creek County is a county located in the U.S. state of Oklahoma. As of the 2010 census, the population was 69,967. Its county seat is Sapulpa.

Rogers County is located in the northeastern part of the U.S. state of Oklahoma. As of the 2020 census, the population was 95,240, making it the sixth-most populous county in Oklahoma. The county seat is Claremore. Rogers County is included in the Tulsa, OK Metropolitan Statistical Area.

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.

Kevin Ray Hern is an American businessman and politician from Oklahoma. A Republican, he is a member of the United States House of Representatives for Oklahoma's 1st congressional district. The chair of the Republican Study Committee, a group of conservative Republicans in the House, Hern was first elected in 2018. In the 2023 Speaker of the House of Representatives election, Hern was nominated for Speaker of the House as a protest candidate against Kevin McCarthy.

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.

Daily Kos is a group blog and internet forum focused on the U.S. Democratic Party and liberal American politics. The site includes glossaries and other content. It is sometimes considered an example of "netroots" activism.

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 the U.S. state of Oklahoma, Eastern Oklahoma is an amorphous area roughly defined as east of Oklahoma City and/or east of I-35. The Oklahoma Department of Tourism and Recreation established regional designations for the various parts of the state: Red Carpet Country, Green Country (Northeast). Frontier Country (Central), Choctaw Country (Southeast), Chickasaw Country, and Great Plains Country (Southwest). Eastern Oklahoma would certainly include Green Country and Choctaw Country, but depending on the exact definition might include eastern parts of Red Carpet Country, Frontier Country, and most of Chickasaw Country.

Choctaw Country is the Oklahoma Department of Tourism and Recreation's official tourism designation for Southeastern Oklahoma. The name was previously Kiamichi Country until changed in honor of the Choctaw Nation headquartered there. The current definition of Choctaw Country includes ten counties, being Coal, Atoka, Bryan, Choctaw, McCurtain, Pushmataha, Le Flore, Latimer, Haskell, and Pittsburg counties. The department created the term as one of six designated travel regions within the state. However, other definitions of Southeastern Oklahoma may include additional counties.

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.

Tahlequah is a city in Cherokee County, Oklahoma located at the foothills of the Ozark Mountains. It is part of the Green Country region of Oklahoma and was established as a capital of the 19th-century Cherokee Nation in 1839, as part of the new settlement in Indian Territory after the Cherokee Native Americans were forced west from the American Southeast on the Trail of Tears.

Mark Wayne "Markwayne" Mullin is an American businessman and politician who has served as the junior United States senator from Oklahoma since 2023. A member of the Republican Party, he was elected in a special election in 2022 to serve the remainder of Jim Inhofe's term. Mullin is the first Native American U.S. senator since Ben Nighthorse Campbell retired in 2005. He is also the second Cherokee Nation citizen elected to the Senate; the first, Robert Latham Owen, retired in 1925. Before being elected to the Senate, Mullin served as the U.S. representative for Oklahoma's 2nd congressional district from 2013 to 2023.

Joseph Silk is an American politician and businessman who served as a member of the Oklahoma Senate, representing the 5th district from 2015 to 2020. Silk's district included parts of Atoka, Choctaw, LeFlore, McCurtain, and Pushmataha Counties. He was first elected in a 2014 Oklahoma Senate special election and served half of a term before winning reelection to a full four-year term in 2016.

The Oklahoma House of Representatives is the lower house of the legislature of the U.S. state of Oklahoma. Its members introduce and vote on bills and resolutions, provide legislative oversight for state agencies, and help to craft the state's budget. The upper house of the Oklahoma Legislature is the Oklahoma Senate.

Donald John Trump is an American politician, media personality, and businessman who served as the 45th president of the United States from 2017 to 2021.

The president of the United States (POTUS) is the head of state and head of government of the United States of America. The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces.

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.

Northwestern Oklahoma is the geographical region of the state of Oklahoma which includes the Oklahoma Panhandle and a majority of the Cherokee Outlet, stretching to an eastern extent along Interstate 35, and its southern extent along the Canadian River to Noble County. Northwest Oklahoma is also known by its Oklahoma Department of Tourism designation, Red Carpet Country, which is named after the region's red soil and alludes to the metaphor that the panhandle is a "red carpet" into Oklahoma. The region consists of Cimarron, Texas, Beaver, Harper, Woods, Alfalfa, Grant, Kay, Ellis, Woodward, Major, Garfield, Noble, Dewey, Blaine, and Kingfisher counties.

The Oklahoma Panhandle is a salient in the extreme northwestern region of the U.S. state of Oklahoma, consisting of Cimarron County, Texas County and Beaver County, from west to east. As with other salients in the United States, its name comes from the similarity of its shape to the handle of a pan.

Ponca City is a city in Kay County in the U.S. state of Oklahoma. The city was named after the Ponca tribe. Ponca City had a population of 25,387 at the time of the 2010 census- and a population of 24,424 in the 2020 census.

Pawnee is a city and county seat of Pawnee County, Oklahoma, United States. The town is northeast of Stillwater at the junction of U.S. Route 64 and State Highway 18.

The Osage Nation is a Midwestern Native American tribe of the Great Plains. The tribe developed in the Ohio and Mississippi river valleys around 700 BC along with other groups of its language family. They migrated west after the 17th century, settling near the confluence of the Missouri and Mississippi rivers, as a result of Iroquois invading the Ohio Valley in a search for new hunting grounds.

Frank Dean Lucas is an American politician serving as the U.S. representative for Oklahoma's 3rd congressional district since 2003, having previously represented the 6th district from 1994 to 2003. A member of the Republican Party, Lucas has chaired the House Committee on Science, Space and Technology since 2023. His district, numbered as the 6th from 1994 to 2003, is Oklahoma's largest congressional district and one of the largest in the nation that does not cover an entire state. It covers 34,088.49 square miles and stretches from the Panhandle to the fringes of the Tulsa suburbs, covering almost half of the state's land mass. Lucas is the dean of Oklahoma's House delegation.

Daily Kos is a group blog and internet forum focused on the U.S. Democratic Party and liberal American politics. The site includes glossaries and other content. It is sometimes considered an example of "netroots" activism.

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.

South Central Oklahoma is an amorphous region in the state of Oklahoma, perhaps encompassing 10 counties. It is centered on the Arbuckle Mountains, an ancient, eroded range traversing some 70 miles (110 km) across the region, and surrounded by rivers and lakes, notably Lake Texoma, Lake Murray and Lake of the Arbuckles. For tourism purposes, the Oklahoma Department of Tourism has more narrowly defined South Central Oklahoma, which they refer to as Chickasaw Country, as being a seven-county region including Pontotoc, Johnston, Marshall, Garvin, Murray, Carter, and Love counties. A ten-county definition might also include Coal, Atoka, and Bryan counties, although the Department of Tourism includes those in Choctaw Country. The Choctaw Nation of Oklahoma covers the eastern third of the region. Its headquarters is in Durant, and its capitol building, now a museum, is in Tuskahoma. The Chickasaw Nation lies within the region, with the tribal capitol building located at Tishomingo and its headquarters in Ada. The Chickasaw Nation, which runs "Chickasawcountry.com"., promotes the idea of Chickasaw Country as the 13 south-central Oklahoma counties that comprise the Chickasaw Nation, being the Tourism Department’s seven counties plus Coal, Bryan, Jefferson, Stephens, Grady, and McClain counties.

Oklahoma City, officially the City of Oklahoma City, and often shortened to OKC, is the capital and largest city of the U.S. state of Oklahoma. The county seat of Oklahoma County, it ranks 20th among United States cities in population, and is the 8th largest city in the Southern United States. The population grew following the 2010 census and reached 681,054 in the 2020 census. The Oklahoma City metropolitan area had a population of 1,396,445, and the Oklahoma City–Shawnee Combined Statistical Area had a population of 1,469,124, making it Oklahoma's largest municipality and metropolitan area by population.

Canadian County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 154,405, making it the fifth most populous county in Oklahoma. Its county seat is El Reno.

Cleveland County is a county in the central part of the U.S. state of Oklahoma. The population was 295,528 at the 2020 United States Census, making it the third-most populous county in Oklahoma. Its county seat is Norman. The county was named for U.S. President Grover Cleveland.

Thomas Jeffery Cole is the U.S. representative for Oklahoma's 4th congressional district, serving since 2003. He is a member of the Republican Party and serves as the chairman of the House Rules Committee. During his tenure as the chairman of the National Republican Congressional Committee (NRCC) from 2006 to 2008, he was the fourth-ranking Republican in the House.

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.

Oklahoma City, officially the City of Oklahoma City, and often shortened to OKC, is the capital and largest city of the U.S. state of Oklahoma. The county seat of Oklahoma County, it ranks 20th among United States cities in population, and is the 8th largest city in the Southern United States. The population grew following the 2010 census and reached 681,054 in the 2020 census. The Oklahoma City metropolitan area had a population of 1,396,445, and the Oklahoma City–Shawnee Combined Statistical Area had a population of 1,469,124, making it Oklahoma's largest municipality and metropolitan area by population.

Kendra Suzanne Horn is an American lawyer and politician who served as the U.S. representative for Oklahoma's 5th congressional district from 2019 to 2021. A member of the Democratic Party, her district included almost all of Oklahoma City.

Alexander Robert Hirsch is an American animator, voice actor, writer, storyboard artist and producer. He is the creator of the Disney Channel series Gravity Falls, for which he provided the voices of Grunkle Stan, Soos, and Bill Cipher, among others. He also earned BAFTA and Annie Awards for the series. In 2016, Hirsch co-authored Gravity Falls: Journal 3 which debuted as a No. 1 New York Times Best Seller and remained on The New York Times Best Seller list for forty-seven weeks. In 2018, Hirsch wrote Gravity Falls: Lost Legends which also appeared on The New York Times Best Seller list.

EMILY's List is an American political action committee (PAC) that aims to help elect Democratic female candidates in favor of abortion rights to office. It was founded by Ellen Malcolm in 1985. The group's name is an acronym for "Early Money Is Like Yeast". Malcolm commented that "it makes the dough rise". The saying is a reference to a convention of political fundraising: that receiving many donations early in a race helps to attract subsequent donors. EMILY's List bundles contributions to the campaigns of Democratic women in favor of abortion rights running in targeted races.

End Citizens United (ECU) is a political action committee in the United States. The organization is working to reverse the U.S. Supreme Court 2010 decision in Citizens United v. Federal Election Commission, which deregulated limits on independent expenditure group spending for or against specific candidates. It is focused on driving larger campaign donations out of politics with a goal to elect "campaign-finance reform champions" to Congress by contributing and raising money for these candidates as well as running independent expenditures. End Citizens United was founded in 2015, operating in its first election cycle during 2016 with more than $25 million in funding.

The Human Rights Campaign (HRC) is an American LGBTQ advocacy group. It is the largest LGBTQ political lobbying organization within the United States. Based in Washington, D.C., the organization focuses on protecting and expanding rights for LGBTQ individuals, most notably advocating for same-sex marriage, anti-discrimination and hate crimes legislation, and HIV/AIDS advocacy. The organization has a number of legislative initiatives as well as supporting resources for LGBTQ individuals.

The National Organization for Women (NOW) is an American feminist organization. Founded in 1966, it is legally a 501(c)(4) social welfare organization. The organization consists of 550 chapters in all 50 U.S. states and in Washington, D.C. It is the largest feminist organization in the United States with around 500,000 members. NOW is regarded as one of the main liberal feminist organizations in the US, and primarily lobbies for gender equality within the existing political system. NOW campaigns for constitutional equality, economic justice, reproductive rights, LGBTQIA+ rights and racial justice, and against violence against women.

The Jewish Democratic Council of America (JDCA), also known as "Jewish Dems", is an organization that defines itself as "the voice for Jewish Democrats and socially progressive, pro-Israel, and Jewish values". It was announced in August 2017, and officially launched in November 2017. JDCA was incorporated in Washington, D. C., in June 2017. JDCA has 15 chapters across the United States.

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 lieutenant governor of Oklahoma is the second-highest executive official of the state government of Oklahoma. As first in the gubernatorial line of succession, the lieutenant governor becomes the new governor of Oklahoma upon the death, resignation, or removal of the governor. The lieutenant governor also serves as the president of the Oklahoma Senate, and may cast a vote to break ties in that chamber.