← Race Tracker
OKSenate
OK Senate
Incumbent: Markwayne Mullin · Republican
20
Candidates
Jun 16
Primary
Nov 3
General
Passed
Until Primary
Filing
Closed
Primary
Jun 16
General
Nov 3
Decided
—
Voter Action
Registration deadlineMay 23, 2026
Vote by mailNo
Voter ID requiredYes
Early votingNo
Runoff riskYes