 J.D. Vance's big introduction to America. The vice presidential pick for Donald Trump speaks at the Republican National Convention. We'll have highlights and analysis from night three in Milwaukee. Meanwhile, we've got new information about the would-be assassin in Butler, Pennsylvania. What do we know about him? Where was he? And why did the Secret Service allow Donald Trump to get on stage if there was a person of interest 10 minutes before Donald Trump even spoke a word?