JEFF MASON THE U.S. Secret Service had to abruptly escort President Donald Trump out of the White House press room in the middle of a briefing because of a shooting outside the White House. Trump returned to the media room several minutes later and said a person had been shot by law enforcement and taken to the hospital. He said he understood the suspect had been armed. "It was a shooting outside of the White House," Trump said. "It seems to be very well under control. ... But there was an actual shooting, and somebody has been taken to the…