Just curious but isn't is possible to "harvest" both the name/sign in of the voter AND the ballot itself? One would show that people were voting who shouldn't have been doing so, AND then track down who they voted for as well?
I recall in the election of 2000 both the Repubs and the Dems were hitting the hospitals, nursing homes, etc., to "help" those old and/or sick individuals be able to cast their votes. Both parties were caught red handed in that lovely little endeavor, it's just that the Repubs were a little better at it.
So, what say you?
Great thing about the ballot harvesting is that all chain of custody documentation disappeared.