Darren Hauck, Reuters
June 5, 2012
Republican Wisconsin Gov. Scott Walker, who is facing a recall election, casts his vote on election day in Wauwatosa. The rematch with Milwaukee's Democratic Mayor Tom Barrett, who Walker defeated in a Republican sweep of the state in 2010, is the end-game of six months of bitter fighting in the Midwestern Rust Belt state over the union restrictions Walker proposed and enacted.