Yeah you don't know that but need to bang that drum for political reasons.It's NOT "fraud". It's (potential) voter suppression and voter disenfranchisement.
And when that happens in a systematic fashion to a bloc of voters, it's a big big problem. But that is NOT what happened here, and it was quickly corrected and folks were provided provisional ballots.
If they were marked as having voted but didn't that is not a small issue that gets covered by we gave these particular people that showed up provisional ballots.