 From ABC News, I'm Michelle Franzen. Republicans gathering for day two of the Republican National Convention in Milwaukee. Day one, Donald Trump made his first appearance since the assassination attempt last weekend in Pennsylvania. Trump announcing his VP choice, J.D. Vance of Ohio. Vance is 39 years old and now the youngest running mate since Richard Nixon. ABC's Catherine Fulder says he started out as a Trump critic but now has embraced the MAGA agenda.