- Democratic congressional and state primaries: closed
- Republican congressional and state primaries: closed
- Democratic Presidential primary: closed
- Republican Presidential primary: closed
- Voters may or may not choose to affiliate with a political party, however, affiliation with a party is required to vote in primary elections.
- 20% of Nevada voters are registered as nonpartisan.
Details of voting in congressional and state primary elections:
- Voters must affiliate with a party to vote in that party's primary.
- Registration closes 20 days before the primary election.