They have got to purge all the bad registrations before the election. It is going to be practically impossible after the election and will require a recount where the votes will have to be challenged.
Agreed, but how do they get all these fraudulent registrations to vote? I'm assuming that they need to do it with absentee ballots. If so, a small group of people could make out 1,000's of ballots as long as they knew the names of the phoney registrations.