So they hold ballots until election day with the name of the voter on it?
They must, or I fail to see how this “revote” works.
I don’t know how it’s done elsewhere but here.......you check into a table where they have a list of names. They find your name on the list and next to it is a number. They use that number to issue you a ballot or card to vote on the machine. I think the machine reads your number.
If they wanted they could track everything back but it would sure be a pain.