 Former President Donald Trump has chosen Ohio Senator J.D. Vance as his running mate. Both have been officially nominated at the convention in Milwaukee, where ABC's Jay O'Brien is. The delegates and the attendees here, they say to me that they believe Vance will help Trump expand his base. And the base word is interesting there. They believe that he's going to appeal to some more moderate voters, particularly voters in the business community, perhaps high dollar.