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Elections in Oklahoma |
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The 2026 United States Senate election in Oklahoma is scheduled for November 3, 2026. Incumbent Senator Markwayne Mullin, first elected in the 2022 special election, has not announced whether he will seek reelection for his first full term in office.
The 2026 United States Senate election in Oklahoma is scheduled for November 3, 2026. Markwayne Mullin is the incumbent. [1] After former President Donald Trump won the 2024 United States presidential election, Mullin was rumored as a contender for U.S. Secretary of Interior. [2] Mullin's resignation would have affected the open 2026 Oklahoma gubernatorial election and if Mullin resigned Governor Kevin Stitt would have appointed a replacement who must sign a potentially unenforceable [a] oath promising not to run for reelection in 2026. [3] Mullin was not appointed Secretary of Interior. [4]
In late 2024, incumbent Markwayne Mullin was rumored as a potential appointee in a second Trump administration, triggering speculation on which Republicans could run for hypothetical open senate seat in 2026. [3]
Executive Branch officials
Campaign finance reports as of June 30, 2025 | |||
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Candidate | Raised | Spent | Cash on hand |
Markwayne Mullin (R) | $3,465,040 | $1,803,496 | $1,716,550 |
Source: Federal Election Commission [11] |
Source | Ranking | As of |
---|---|---|
Inside Elections [14] | Solid R | August 12, 2025 |
The Cook Political Report [15] | Solid R | August 18, 2025 |
Sabato's Crystal Ball [16] | Safe R | August 12, 2025 |
Race To The WH [17] | Safe R | September 4, 2025 |
Official campaign websites