U.S. President Donald Trump walks towards Marine One on the South Lawn of the White House in Washington, D.C., U.S., on Wednesday, May 17, 2017. Trump is facing the deepest crisis of his presidency after a memo written by then FBI Director James Comey surfaced Tuesday, alleging that the president asked him to drop an investigation of former National Security Adviser Michael Flynn. Photographer: Andrew Harrer/Bloomberg via Getty Images
U.S. President Donald Trump walks towards Marine One on the South Lawn of the White House in Washington, D.C., U.S., on Wednesday, May 17, 2017. Trump is facing the deepest crisis of his presidency after a memo written by then FBI Director James Comey surfaced Tuesday, alleging that the president asked him to drop an investigation of former National Security Adviser Michael Flynn. Photographer: Andrew Harrer/Bloomberg via Getty Images
U.S. President Donald Trump walks towards Marine One on the South Lawn of the White House in Washington, D.C., U.S., on Wednesday, May 17, 2017. Trump is facing the deepest crisis of his presidency after a memo written by then FBI Director James Comey surfaced Tuesday, alleging that the president asked him to drop an investigation of former National Security Adviser Michael Flynn. Photographer: Andrew Harrer/Bloomberg via Getty Images
