 and either the last four of your Social Security number or your driver's license number, depending on what you used during your voter registration. If you're a registered independent and want to vote in the primary, you must choose a single-party ballot to do so. The request won't change your status. July 1st is the deadline to register for the primary in order to get early ballots out in the mail beginning July 3rd. The election is July 30th.