 Sources telling ABC News that Trump told Vance about the decision only 20 minutes before making the announcement. Speaking to ABC News on the sidelines at the RNC, House Majority Whip Tom Emmer said Vance will bring some youth to the ticket. Everybody's so old. And J.D. Vance, he's 39 turning 40. He's a Marine. I like that. And he speaks to a population that, frankly, Washington has not been listening to for years. I think it's a great thing.