Oklahoma US Senate 2026
Election day is November 3, 2026. A statewide contest in Oklahoma.
Who is favoured in Oklahoma US Senate?
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What the Oklahoma US Senate election decides
The Senate confirms federal judges and cabinet officers, ratifies treaties, and can stop legislation the House passes. With a six-year term and a hundred-member chamber, a single seat is a larger share of the institution than any House district, which is why Senate races draw national money into state contests.
Each state sends two senators regardless of population, so this seat carries the same weight as California's or Wyoming's. Oklahoma voters fill it alongside all 5 of the state's House seats and the governorship, and a Senate term runs six years, spanning two future Congresses and, in this case, the next presidential election.
How Oklahoma votes
Oklahoma is among the most Republican states, with energy, agriculture and tribal nations central to its governance. Its most consequential contests are usually primaries, and education funding recurs as a statewide flashpoint. That backdrop is the ground any Oklahoma campaign fights on, and it is what the Electorate HQ simulation reads first when it weighs a ticket's platform against this contest.
About this race
The 2026 United States Senate election in Oklahoma was held on November 3, 2026, to elect a member of the U.S. Senate to represent the state of Oklahoma. Republican representative Kevin Hern defeated Democratic nurse N'Kiyla Jasmine Thomas. Republican appointee Alan Armstrong, who was named to the seat in March after Markwayne Mullin resigned to become secretary of homeland security, was prohibited by state law from seeking a full term.
Primary elections were held on June 16. Hern, endorsed by President Donald Trump, won the Republican nomination with 69.8% of the vote over country singer Ty England. After no candidate received a majority in the Democratic primary, Thomas defeated attorney Jim Priest in a runoff on August 25 with 61.2% of the vote.
Background
Latest coverage of the Oklahoma US Senate race
Oklahoma 2026 U.S. Senate Race CandidatesOklahoma 2026 Election ResultsIndependent candidates hope to shake up status quo, give Oklahoma voters alternative optionOklahoma U.S. Senate Race: Kevin Hern vs. Jasmine Thomas Voter GuideOklahoma primary elections: Democratic candidates competing for former U.S. Sen. Markwayne Mullin’s seatOklahoma U.S. Senate Election 2026: Latest PollsOklahoma Election Results: Republicans maintain hold on state despite national blue waveWinner of Oklahoma’s U.S. Senate race could take office next month, AG decidesThe rest of the Oklahoma ballot
Every Oklahoma House district, the counties inside each one, and an address lookup that resolves your exact districts are on the Oklahoma state page.
Other 2026 races in Oklahoma
Analysis covering Oklahoma
Twenty-six states elect a senator and a governor on the same day in 2026
The overlap between the Senate class and the gubernatorial cohort is a coincidence of two unrelated calendars, and it decides where money goes.
The 2026 Senate map covers 62% of the country and 70% of the states
Thirty-five of fifty states vote for Senate this year. Weighted by people rather than states the share drops, and that gap is the design of the chamber.