RBC | Primary ballots were mailed to registered Colorado voters beginning Monday, June 3.
June 17 is the last day to submit a voter registration if you want to receive a ballot in the mail.
Unaffiliated voters will receive both the Republican and Democratic party ballots, but must choose just one to fill out. Submitting both ballots will result in disqualified ballots.
Ballots being returned by mail must be sent no later than June…