 I think that the experience he went through has changed him. That changes people, changes anybody. And so I think that we'll see a different Donald Trump, a Donald Trump that is more graceful. A group of Republican senators chased Secret Service Director Kimberly Cheadle at the convention, demanding she answer questions about the assassination attempt on the former president. We've learned more about the investigation into the 20-year-old gunman. CBS's Anna Schechter. They actually found