Illinois - Open Primaries
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Primary Elections State By State



  • Democratic congressional and state primaries: open
  • Republican congressional and state primaries: open
  • Democratic Presidential primary: mixed
  • Republican Presidential primary: mixed


Primary Type Definitions



  • Illinois has nonpartisan registration. There is no option to affiliate with a political party on the voter registration form.


Details of voting in congressional and state primary elections:

  • Voters are not required to register with a party to participate in the party primaries, but they do have to publically choose one party's ballot to vote. This is considered a public declaration and can be challenged by other voters.
  • Voting history is also public information and records are kept. 


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published this page in What's happening in your state? 2015-06-10 12:29:24 -0400