Wednesday, Feb. 21, 2024, is the deadline for Missouri voters to declare their party affiliation as a Democrat prior to the Democratic Presidential Primary Election (DPP), Saturday, March 23, 2024.

The Missouri Democratic Party (MDP) does not require registration of party affiliation in order to vote in the DPP Election so long as the voter has not declared themselves to be a Republican.

To update only your party affiliation, use this link: Voter Registration | Party Affiliation (mo.gov)

(or go to your local County Clerk’s office to update in person)

For voter registration details see the Secretary of State’s website: Elections & Voting Default (mo.gov)