 All right, Selena Wang for us tonight. Thank you. And former President Trump hits the campaign trail tomorrow for the first time with his vice presidential pick, J.D. Vance. It follows his acceptance speech at last night's Republican National Convention at 92 minutes, the longest in U.S. political history. Trump had said his close brush with an assassin's bullet had changed him, but halfway through the speech, he changed course. Here's ABC's chief Washington correspondent, Jonathan Karl.