Outgoing U.S. Secretary of State Rex Tillerson delivers remarks at the State Department in Washington, D.C., U.S. on Tuesday, March 13, 2018. President Donald Trump ousted Tillerson on Tuesday, ending a rocky tenure in an abrupt move that stunned the former Exxon Mobil Corp. CEO and set in motion a shakeup of the administration's foreign policy team. Photographer: Joshua Roberts/Bloomberg via Getty Images