In the presidential battle-ground state of Wisconsin, obscure Democrat Joanne Kloppenburg is claiming victory by 204 votes out of one and a half million over David Prosser, a veteran Republican on the State Supreme Court. The office is actually non-partisan, but it was politics that made the difference, and it's all about Republican Governor Scott Walker's new law restricting collective bargaining for state workers. Monica Davey is Chicago Bureau Chief for the New York Times.