If no candidate receives at least 50% of the vote in the primary, a runoff will be held between the top two vote-getters.

The primary is for Democratic and Republican candidates only. Candidates running unopposed for their Party's nomination will not appear on primary ballots.

Voters may not vote in a political party’s runoff if they voted in another political party’s primary. However, voters who did not vote in either politicial party’s primary may vote in either politicial party’s runoff.

A defeated primary candidate may not actively offer or campaign as a write-in candidate for the ensuing election. The use of posters or stickers on the ballot is not permitted. The voting machine provides for a voter to write-in a candidate. Write-in votes are not allowed in primary elections or the election of President or Vice-president.

The Constitution, Independence, Green, Labor, Libertarian, United Citizens, and Working Families Parties nominate by convention rather than by primary.