Oklahoma voters headed to the polls on Tuesday, June 16, 2026, to decide one of the most consequential primary ballots the state has seen in years. With Governor Kevin Stitt term-limited and a U.S. Senate seat suddenly open, the night produced a clear winner in one marquee race, a still-tight battle in another, and a statewide vote on raising the minimum wage. Here’s a full breakdown of the Oklahoma election results, who won, who’s headed to an August runoff, and what it all means heading into the November general election.
Why This Primary Mattered So Much
A rare combination of term limits, retirements, and a Cabinet appointment opened up an unusually large number of top jobs in Oklahoma this cycle. Governor Stitt cannot seek a third term, creating an open race for governor for the first time in eight years. Meanwhile, the U.S. Senate seat once held by Markwayne Mullin became vacant after he resigned in March 2026 to join President Trump’s Cabinet as Secretary of Homeland Security. Add in open contests for lieutenant governor, attorney general, and a closely watched ballot measure on the minimum wage, and Tuesday’s primary carried more weight than a typical midterm cycle.
Oklahoma runs closed primaries, meaning candidates need a true majority of the vote to win their party’s nomination outright. If no one clears 50 percent, the top two finishers in that race move on to a runoff election scheduled for August 25, 2026, with the general election following on November 3.
U.S. Senate: Kevin Hern Wins the Republican Nomination Outright
The night’s biggest headline came early: Representative Kevin Hern secured the Republican nomination for U.S. Senate without needing a runoff, according to NBC News’ projection. Hern, who has represented Oklahoma’s 1st Congressional District since 2018, gave up his House seat to make the jump after President Trump endorsed him for the open Senate post. That Trump endorsement appears to have helped him consolidate Republican support and clear the field decisively on primary night.
Hern now becomes the heavy favorite to win the seat outright in November. Oklahoma is one of the most reliably Republican states in the country, and the GOP has held both Senate seats for decades, so Hern’s primary win effectively sets him up to be Oklahoma’s next senator barring a major surprise in the fall.
Governor’s Race: A Crowded Field and a Likely Runoff
The Republican primary for governor was the most crowded and expensive race on the ballot, with nine candidates competing to replace Stitt. The frontrunners going into election night were Attorney General Gentner Drummond, Trump-endorsed financial planner Mike Mazzei, former House Speaker Charles McCall, and businessman Chip Keating, son of former Governor Frank Keating. Campaign finance disclosures showed the Republican governor’s race alone accounted for more than $34 million in spending, fueled heavily by candidates loaning their own campaigns millions of dollars in the final stretch.
Because the field was so large and so closely contested in pre-election polling, none of the frontrunners were expected to clear the 50 percent threshold needed to avoid a runoff. Unless final certified results show an outright majority winner, the top two Republican finishers will face off again on August 25. On the Democratic side, House Minority Leader Cyndi Munson was the best-funded and most prominent candidate, running against former state Senator Connie Johnson in a state where Democrats haven’t won a governor’s race since 2006.
Because vote counts were still being finalized and certified in the hours after polls closed, voters are encouraged to check the Oklahoma State Election Board’s official results page for the certified outcome and confirmation of whether the governor’s race is headed to an August runoff.
State Question 832: The Minimum Wage Vote
Tuesday’s ballot also included State Question 832, a high-profile measure that would raise Oklahoma’s minimum wage from $7.25 to $12 an hour in 2027, $13.50 in 2028, and $15 by 2029, with future increases tied to the cost of living starting in 2030. The measure has been one of the most fiercely contested fights of the 2026 cycle, pitting worker advocacy groups against the Oklahoma Farm Bureau and the State Chamber of Commerce. Pre-election polling showed the race close, with one survey putting support at roughly 51 percent against 45 percent opposition. As with the governor’s race, official certification of the final tally was still pending as results came in, so voters should check the state election board for the confirmed outcome.
Down-Ballot Races to Watch
Beyond the marquee contests, Oklahomans also picked nominees for lieutenant governor and attorney general, both open seats this cycle, along with dozens of state legislative and county races across the state. As with the governor’s race, any contest where no candidate reached a majority will be decided in the August 25 runoff.
What Happens Next
With the primary now behind them, Oklahoma voters have two key dates circled on the calendar. Any race that didn’t produce a majority winner on June 16 will head to a runoff on August 25, 2026. After that, the general election on November 3 will decide the state’s next governor, U.S. senator, and a wide slate of other offices. Given Oklahoma’s deep Republican lean in statewide races, whoever wins the GOP nominations for governor and Senate will enter the fall campaign as the clear favorite.
Frequently Asked Questions
Who won the Oklahoma Senate primary in 2026? Representative Kevin Hern won the Republican nomination for U.S. Senate outright, according to NBC News’ election night projection, avoiding the need for an August runoff.
Why was there an open Senate seat in Oklahoma? The seat became vacant after Senator Markwayne Mullin resigned in March 2026 to become Secretary of Homeland Security in President Trump’s Cabinet.
Is the Oklahoma governor’s race headed to a runoff? With nine Republican candidates on the ballot and no clear majority winner expected, the race is likely headed to an August 25 runoff between the top two finishers, though voters should confirm with official certified results.
When is the Oklahoma primary runoff election? Any statewide or local race that didn’t produce a majority winner on June 16 will be decided in a runoff election on August 25, 2026.
When is the Oklahoma general election? The general election is set for November 3, 2026, when voters will decide the governor’s race, the U.S. Senate seat, and other statewide and local contests.
What is State Question 832? SQ 832 is a ballot measure that would raise Oklahoma’s minimum wage from $7.25 to $15 an hour by 2029, with future increases tied to the cost of living starting in 2030.
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