Not anymore. State law closes voter affiliation changes after a certain date each year; this year it’s January 9, 2024. You can find more information about this here. If you are registered with any other party besides Republican, you will not be able to change your party affiliation to participate in the Republican Party caucus. We encourage you to attend the caucus night of the party with which you are registered, which may be on the same night or a different night. (As an example, the Democrat party of Utah will be holding their caucus on the same night of March, 5th.)

If you are not affiliated with any party or not registered to vote, then you may register as a Republican at any time up until the night of caucus and still participate in the Republican party’s neighborhood caucuses.