I agree that Trump was the only GOP Candidate who could have won Michigan and Pennsylvania but not Wisconsin. While Trump won the Michigan and Pennsylvania primaries, he didn’t win the Wisconsin primary. While Trump won Wisconsin in the general election by .76%, GOP Senator Johnson won his reelection bid there by 3.36%. Also, Wisconsin’s voter turnout was low in 2016 compared to turnout in 2012. This was mainly due to Hillary not campaigning in Wisconsin along with there being a strict voter ID law that went into effect during the 2016 election there.