The presidential primary season comes to a close on Tuesday, June 26, when Utah holds its presidential primary and its primary for all other office. Utah doesn’t print up primary ballots unless there is a contest, so the only party with a presidential primary is the Republican Party. The five candidates in that primary are: Newt Gingrich, Fred Karger, Ron Paul, Mitt Romney, and Rick Santorum.
The Constitution Party has a contested gubernatorial primary, and is the only party in Utah to have a gubernatorial primary. See this story. Any registered voter is free to vote in the Constitution Party’s primary.