 U.S. Secret Service is saying today that it boosted security around Donald Trump after picking up intelligence in recent weeks of an Iranian plot to assassinate him. There is no indication there's any tie to the weekend shooting. Axios reporting that House Oversight Committee Chair James Comer is set to subpoena Secret Service Director Kimberly Chiddle to appear July 22nd. Convention tonight. Bloomberg's Laura Davison says the theme is crime.