TUESDAY UPDATE: From the Wisconsin State Journal–denials getting sniffed out, found wanting:

The recordings indicate that group was working with the state Republican Party and another organization, Americans for Prosperity, and planned to send mail to addresses on voter rolls and use any mail that is returned to challenge voters’ registrations. The practice is known as “voter caging.”

…Dake confirmed that tea party members had been at a coalition leadership meeting in Marshfield on June 12. And he said AFP had been planning on sending out mailings to confirm people are “legitimate voters.”

But he said they were interested in preventing voter fraud, not keeping legitimate voters from the polls.

“No, it wasn’t targeting anyone,” Dake said. “I don’t know how you could tell these were minorities or students.”

…Mark Block of Americans for Prosperity denied involvement to the Wisconsin State Journal, and said he didn’t think he was in town on June 12.

“I’ve never had a conversation of that sort with anybody,” Block said.

But he told Milwaukee Journal Sentinel he had discussions with Dake and others about targeting voter fraud. He reportedly told that newspaper his group had sent 500 letters to voters asking them to join the organization, with the purpose of seeing whether or not the letters could be delivered. [Pols emphasis]