Trump heads to Las Vegas after music festival massacre: 'It's a very sad day for me'

President Donald Trump and first lady Melania Trump walk toward Marine One on the South Lawn of the White House in Washington, Wednesday, Oct. 4, 2017, for a short trip to Andrews Air Force Base, Md., and then on to Las Vegas to visit with victims and first responders affected by the worst mass shooting in American history. (AP Photo/Andrew Harnik)