In Wisconsin’s Senate race, Johnson vs. Feingold has gone from a sure-thing to a potential trend-buster

Wisconsin has voted for the Democratic presidential candidate for the past seven elections, and yet since 2010, the state has seen a notable swing towards the Republican Party in statewide and legislative races. As part of our series covering key Senate races in the 2016 election, Wendy Scattergood writes that former Senator Russ Feingold has a good chance of winning his old job back from incumbent Republican Senator, Ron Johnson, though this will also depend on turnout and on the top-ticket influence of Hillary Clinton.