SOUTH DAKOTA

Primaries:

• Democratic congressional and state primaries: open

• Republican congressional and state primaries: closed
  

• Democratic Presidential primary: open
  

• Republican Presidential primary: closed
  

Primary Type Definitions

Registration:

• Voters may or may not choose to affiliate with a political party at voter registration.

Details of voting in congressional and state primary elections:

• The Democratic Party allows party members and unaffiliated voters to participate in their primaries. Voting in the Democratic Primary does not alter unaffiliated status.

• Only registered Republicans are allowed to participate in the Republican primary.

• Voter registration closes 15 days before the primary election.