 This is CBS News on the Hour, sponsored by O'Reilly Auto Parts. I'm Monica Ricks. Another plot to kill former President Trump, this one from Iran. CBS's Samantha Vinograd tells us U.S. intelligence officials got word ahead of his rally in Pennsylvania last weekend and stepped up security. There have been an ongoing series of threats to Mr. Trump and specific members of his administration when they were in office and since they left office.