 This is CBS News on the Hour, sponsored by O'Reilly Auto Parts. I'm Michael Toscano in Washington, where attention is focusing on security at the rally where a gunman was able to injure former President Donald Trump. The Secret Service says they relied on local police at the Trump rally in Butler, Pennsylvania. But Butler County District Attorney Richard Goldringer says their responsibility was limited. We provided some snipers for them, some quick response teams, but we didn't have any responsibility with...