The details about "Caging" and what the Republicans have planned to do are coming into view. The Republicans have been compiling lists (probably in the tens of thousands) of voters whom they have culled from lists of those newly registered, mailing registered mail to them, preparing lists of those who did not accept the Republican Party mailing, and then challenging their right to vote.

Here's one such incident that's been exposed in Ohio:
ELECTION BOARD THROWS OUT 976 CHALLENGES BY REPUBLICAN PARTY

GOP Challenger Barbara Miller Could be Indicted on Felony Charges

AKRON, Ohio - The Summit County Board of Elections abruptly threw out 976 challenges of voter eligibility by the Republican Party today after Barbara Miller, the challenger, revealed that she did not have any personal information about the eligibility of any of the challenged voters.

Now just this last week the Washington State GOP pulls this shit:

Over at Kos. Disgusting, this needs to be uncovered for the dirty Karl Rove trick that it is.