Lots of people have been surprised to learn that absentee voters in Michigan can change their ballots even if they've already cast them – as long as they do it by 4 p.m. on Monday.
"The old ballot will be voided," said Michigan Secretary of State spokesman Fred Woodhams. "It will not be counted."
Woodhams said absentee voters can request a re-do for any reason. But it's usually to correct a mistake, like voting for too many candidates or skipping portions of the ballot.
"This is really an uncommon thing," Woodhams said. "But it does happen from time to time."