Presidential Primary Date: March 5, 2024
Open or Closed: Open to Unaffiliated Voters (based on May 2022 legislation)
Legislation creating semi-open primaries in Maine went into effect in May 2022. The bill allows people who are not registered with either party to participate in primary voting beginning in 2024.
In presidential, state, and congressional primaries, voters must affiliate with a party to vote in their primary, but unaffiliated voters may affiliate with a party on election day. Affiliated voters wishing to update their affiliation must do so at least 15 days before an election. You can update your affiliation 3 months after the date of your last party change.