Can voters who have already cast their ballot early change their vote?
If you would like to change your vote after returning your completed and signed absentee ballot to your local clerk's office, your written and signed request must be received by your local clerk’s office by 5 p.m. the second Friday before Election Day (July 24).
Voters who wish to vote in person after obtaining an absentee ballot can do so at their early voting site or Election Day polling place if they have not already returned their absentee ballot. Voters may either submit their voted absentee ballot for tabulation at the early voting site or Election Day polling place or they may “spoil” their absentee ballot and be issued a new ballot
If you have already cast your ballot at an early voting or election day polling location, your vote cannot be changed.