Looks like they’re attemting to register dead people under McCain supporters’ addresses.
So when the legit registered (McCain) voter checks in to vote, there is mass confusion as to who actually is registered under that address (the acorn fake or the McCain voter).
Has the potential to null some McCain votes.
One thing that could be done is some states would be to re-register people in other jurisdictions and have their registration struck from their actual address.
It could be a way to swing a vote. Have a fake vote under your name in a new jurisdiction, then you have to vote provisional and prove that you did not vote in the new jurisdiction.