Markwayne Mullin is up for reelection in the 2026 election cycle, with the general election scheduled for November 3, 2026.

Quick Scoop

  • Markwayne Mullin currently holds Oklahoma’s Class II U.S. Senate seat.
  • His present term runs through January 3, 2027, which means his reelection race is the regularly scheduled 2026 Senate election in Oklahoma.
  • The 2026 U.S. Senate election in Oklahoma will be held on November 3, 2026, and Mullin has announced that he is running for a full six‑year term.

Key Dates (as currently set)

  • Primary elections in Oklahoma are scheduled for June 16, 2026.
  • General election: November 3, 2026.

In forum-style discussions and political news updates, you’ll often see this framed as “Mullin’s first full-term race” since he was initially elected in a 2022 special election and is now seeking a regular six‑year term.

Why 2026?

  • U.S. Senators serve six-year terms, and the seat Mullin holds (Class II) is on the 2020–2026–2032 cycle.
  • Mullin assumed office in January 2023 after winning the 2022 special election, so 2026 is the first time voters decide whether to give him a full term.

TL;DR: If you’re wondering “when is Markwayne Mullin up for reelection?” — it’s the 2026 Senate race, with the main vote on November 3, 2026.

Information gathered from public forums or data available on the internet and portrayed here.