MADISON -- With polls showing Wisconsin Senate candidates Tammy Baldwin and Tommy Thompson in a statistical dead heat, Obama swept into Madison, Wisconsin for an early morning rally on his final day of campaigning. The Obama campaign hopes to lock up the state and give a boost to Baldwin, as the candidates addressed a wildly enthusiastic crowd against a backdrop of blue skies and a white State Capitol building, that looks a heck of a lot like the U.S. Capitol. On the plane with Obama, one of his most effective bridges to those few remaining undecided voters, Bruce Springsteen.