[Otta B Sleepin]

Hypothetical (I hope) question: My husband has already voted by absentee ballot, but I'm assuming his name will still show up on the printout list of registered voters at the polls. Wouldn't it be possible for someone to come in and sign his name and vote in his place, thus canceling out or superceding his absentee vote?

Are there any safeguards in place to prevent this from happening to absentee voters? (We're in MN, BTW)

[Notwithstanding]

In MI the list of registered voters will have absentee voters' names annotated as such (absentee ballot mailed), and in order to vote in person, they will need to sign an affidavit claiming they did not already vote absentee.
Nevertheless, I understand such ballots should be challenged, too, even with such an affidavit being signed. (We all know that no RAT would sign an false affidavit, don't we?)