The 2024 Missouri Democratic presidential primary was held on March 23, 2024, as part of the Democratic Party primaries for the 2024 presidential election. It took place on the same day as the primary in Louisiana. 64 delegates to the Democratic National Convention were allocated, with 6 additional unpledged delegates, in the open party-run primary. Votes were counted on March 25 and announced on March 28.

While President Joe Biden won the primary virtually unopposed, the campaign for uncommitted delegates by the Uncommitted National Movement won three district delegates, as they received 36% of the vote in the city of St. Louis. A number of groups in the St. Louis area had directly campaigned to cast "uncommitted" ballots in protest of Biden's reaction to Israel's military invasion of Gaza. US Representative Dean Phillips tied with Biden in Clark County, but otherwise placed fourth below 1% and behind Marianne Williamson.

Administration The Missouri Democratic Party organized the 2024 statewide primary as a closed, ranked-choice firehouse presidential primary. The state-run presidential primary for all parties in Missouri had previously in a rare instance been abolished by the Missouri General Assembly in 2022, and a bill which would have reinstated it for 2024 was surprisingly defeated by legislators in August 2023 despite major support from both Democratic and Republican state parties.

Candidates The following candidates achieved ballot access. Joe Biden Stephen P Lyons (withdrawn) Jason Palmer Armando Perez-Serrato Dean Phillips (withdrawn) Marianne Williamson The ballot automatically included an option for Uncommitted.

Endorsements

Results

See also 2024 Missouri Republican presidential caucuses 2024 United States presidential election 2024 United States elections 2024 Democratic Party presidential primaries 2024 United States presidential election in Missouri

References