By Mike McGann, Editor, The Times Donald J. Trump, Mitch McConnell and Paul Ryan are trying really, really hard to make sure U.S. Rep. Ryan Costello doesn’t get re-elected in 2018 — although it may be his own history that ultimately proves his undoing. Oh, sure, the President and the Speaker of the House — as fellow Republicans — will swear until the cows come home that they back the two-term...