# 2026 United States Senate election in Oklahoma

Elections in Oklahoma :
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2026 :
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2026 :
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vte :
The 2026 United States Senate election in Oklahoma is scheduled for November 3, 2026. Incumbent Senator Markwayne Mullin has not announced whether he will seek reelection for his first full term in office.

## Background

The 2026 United States Senate election in Oklahoma is scheduled for November 3, 2026. Markwayne Mullin is the incumbent. After former President Donald Trump won the 2024 United States presidential election, Mullin was rumored as a contender for U.S. Secretary of Interior. 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 oath promising not to run for reelection in 2026. Mullin was not appointed Secretary of Interior.

## Republican primary
### Candidates

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.

#### Potential

* Stephanie Bice, U.S. Representative for Oklahoma's 5th congressional district (2021–present)
* Markwayne Mullin, incumbent U.S. Senator (2023–present)
* Matt Pinnell, Lieutenant Governor of Oklahoma (2019–present)
* Kevin Stitt, Governor of Oklahoma (2019–present)
* Ryan Walters, Oklahoma Superintendent of Public Instruction (2023–present)

#### Declined

* Gentner Drummond, Attorney General Of Oklahoma (2023–present) (running for governor)
* Kevin Hern, U.S. Representative for Oklahoma's 1st congressional district (2018–present)

## Democratic primary
### Candidates
#### Potential

* Kendra Horn, former U.S. Representative for Oklahoma's 5th congressional district (2019–2021) and Democratic nominee for U.S. Senate in 2022

## General election
### Predictions

| Source | Ranking | As of |
| Inside Elections | Solid R | January 17, 2025 |
| The Cook Political Report | Solid R | February 11, 2025 |
| Sabato's Crystal Ball | Safe R | February 13, 2025 |