A federal judge has thrown out a lawsuit brought by Democrats that challenged Wisconsin’s witness requirements for absentee voting, a ruling that keeps the law in place with the presidential election six months away. The rules for voting in Wisconsin are of heightened interest given its place as one of a handful of battleground presidential states. Four of the past six presidential elections in Wisconsin have been decided by less than a percentage point, including the past two. U.S. District Court Judge James Peterson tossed the lawsuit Thursday, saying the fact that the law has stood unchallenged in one form...