Republican Tim Sheehy won his party’s nomination to run for Montana’s U.S. Senate seat on Tuesday, according to a race call by The Associated Press. Sheehy, a former Navy Seal and entrepreneur, is a political newcomer taking on incumbent Democratic Sen. Jon Tester in November. He addressed his lack of legislative experience head on at a dinner with Montana Republicans earlier this year. “I’ve been criticized by a lot of people, some in this room [who ask], ‘who the hell is this guy?...