WASHINGTON, DC - FEBRUARY 1: (AFP OUT) Rex Tillerson delivers remarks after being sworn in as 69th secretary of state as President Donald Trump looks on beneath a painting of populist President Andrew Jackson in the Oval Office of the White House on February 1, 2017 in Washington, DC. Tillerson was confirmed by the Senate earlier in the day in a 56-43 vote. (Photo by Michael Reynolds-Pool/Getty Images)

WASHINGTON, DC - FEBRUARY 1:  (AFP OUT) Rex Tillerson delivers remarks after being sworn in as 69th secretary of state as President Donald Trump looks on beneath a painting of populist President Andrew Jackson in the Oval Office of the White House on February 1, 2017 in Washington, DC. Tillerson was confirmed by the Senate earlier in the day in a 56-43 vote.  (Photo by Michael Reynolds-Pool/Getty Images)