 Vance's criticism of Trump went way over the line. Vance called him a fraud a year ago, so that's the issue. Fosner might not like the pick, but Trump tells ABC News that Vance is, quote, a very smart guy. Jim Ryan, ABC News, at the Republican National Convention in Milwaukee. President Biden campaigning in Las Vegas, giving a reaction to J.D. Vance. ABC News Chief White House Correspondent Mary Bruce.