The 2026 U.S. Senate Primary Election in Missouri will be held on August 4, 2026, to select the Democratic and Republican nominees for the U.S. Senate seat currently held by Incumbent Senator Josh Hawley. Voters will choose candidates who will advance to the general election in November 2026.
The 2026 U.S. Senate Primary Election in Missouri will be held on August 4, 2026, to select the Democratic and Republican nominees for the U.S. Senate seat currently held by Incumbent Senator Josh Hawley. Voters will choose candidates who will advance to the general election in November 2026.
To vote in Missouri’s 2026 primary, eligible residents must register by July 6, 2026, either online via the Missouri Secretary of State’s website, by mail, or in person at a local election office. On Election Day or during early voting (July 22–August 2), voters must present a valid photo ID such as a Missouri driver’s license, state ID, passport, or military ID; those without ID may cast a provisional ballot after signing an affidavit.