[Pollster1]

This omits the most likely path, the SEIU/ACORN path:

Obama 2012 voters pictured above.

[radioone]

They are testing the methods of voter fraud in Wisconsin, right now:
“WISN reports that the Government Accountability Board will only check the addresses and dates that accompany the signatures. It will “flag” names that seem suspicious — e.g. Mickey Mouse — but “will not strike them without challenge.” To initiate a recall election, there will need to be 540,208 valid signatures, so significantly more than that will probably be submitted.”
http://althouse.blogspot.com/2011/12/impossible-task-of-verifying-signatures.html