India, Aug. 4 -- Missouri Primary Election 2026 Voting & Result Date: The Missouri Primary Election is being held today, Tuesday, August 4, 2026, with polling stations open statewide from 6:00 a.m. to 7:00 p.m. CT. Missouri is conducting the election under a new congressional district map adopted for the 2026 cycle following Republican-led redistricting. Missouri also uses an open primary system, allowing registered voters to choose the ballot of any one recognized political party regardless of their party affiliation. Voters may select only one party ballot for the primary.

Missouri Primary Election 2026 Polls Open Today

The Missouri Primary Election is being held today, Tuesday, August 4, 2026. Polls across Missouri are open from 6:00...