What does Karl Rove know that we don't know?

Why is Rove fighting so hard at the last moment to get Lieberman removed from consideration as VP and Romney included?

Republican strategist Karl Rove called Sen. Joseph I. Lieberman (I-Conn.) late last week and urged him to contact John McCain to withdraw his name from vice presidential consideration, according to three sources familiar with the conversation.

Lieberman dismissed the request, these sources agreed.

Lieberman “laughed at the suggestion and certainly did not call [McCain] on it,” said one source familiar with the details.

“Rove called Lieberman,” recounted a second source. “Lieberman told him he would not make that call.”

Rove did not immediately respond to a request for comment. . . .

His decision to wade into the vice presidential selection process could provide Democrats fresh ammunition to tie McCain to the polarizing Bush.

It is also chafing some Lieberman allies and others wary of the selection of former Massachusetts Gov. Mitt Romney.

“Rove is pushing Romney so aggressively some folks are beginning to wonder what's going on,” grumbled one veteran Republican strategist.