How Minnesota does it: Blank ballots arrive in sealed packages. Ballots, whether blank or marked, sealed or unsealed, may only be handled in the presence of ele

How Minnesota does it: Blank ballots arrive in sealed packages. Ballots, whether blank or marked, sealed or unsealed, may only be handled in the presence of election judges from at least two different political parties. Counts are kept, by those groups. And ballots, either blank or marked, are generally kept under lock and key. Attempts to insert extra ballots will be detected by the count. Attempts to substitute ballots would have to match counts exactly, and somehow be done without being seen in a room with multiple other judges and other people.