4/26 - Todd Blanche, Rep. Jamie Raskin, Amb. Christian Turner

President Trump attended the White House Correspondents' Dinner for the first time as president. But the dinner was postponed after gunshots rang outside the ballroom and the president and his Cabinet were evacuated. Ed O'Keefe reports. Multiple sources confirmed to CBS News that the suspect in the White House Correspondents' Dinner shooting was targeting Trump administration officials and his brother alerted authorities to alleged alarming writings that he shared with authorities. Nicole Sganga reports. Acting Attorney General Todd Blanche told "Face the Nation with Margaret Brennan" that law enforcement is still looking into the alleged shooter's motivation, but officials believe he was targeting Trump administration officials. CBS News national security correspondent Sam Vinograd and CBS News law enforcement analyst AT Smith, Rep. Jamie Raskin and U.K. ambassador to the U.S. Christian Turner join.