Michigan has open non-presidential primaries. For presidential primaries, a voter must declare a political party when requesting a ballot – however, this is not considered a declaration of party affiliation and has no bearing on how a voter may vote in future primary elections. For all other primaries, voters will be issued a single ballot with all political parties and candidates listed, and voters may choose which party primary they would like to participate in. 17-year-olds cannot vote in the primary election even if they will be 18 by the corresponding general election.
