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 will be held on November 3, 2026, to elect a member of the U.S. Senate to represent the state of Oklahoma. Republican congressman Kevin Hern and Democratic nurse N'Kiyla Jasmine Thomas are the nominees for their respective parties. Republican appointee Alan S. Armstrong, who was named to the seat in March after Markwayne Mullin resigned to become secretary of homeland security, is prohibited 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.
Democrats have not won a Senate election in Oklahoma since 1990.
Latest coverage of the Oklahoma US Senate race
Oklahoma sees uptick in voter turnout for 2026 runoff electionsS. Carolina Senate runoff, Georgia House special, Oklahoma governor race TuesdayWhat to expect in elections in South Carolina, Georgia and OklahomaResults from the June 16th Primaries in Oklahoma and Washington D.C.Live results: Oklahoma U.S. Senate Democratic primary runoff 2026N'kiyla Jasmine Thomas wins U.S. Senate runoff, becomes Oklahoma's first 'democratic socialist' nomineeDemocratic socialists notch another win in the Oklahoma Senate primary runoffOklahoma voters oust two incumbent Senate Republicans. Third lawmaker barely advancesThe 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.