WASHINGTON, DC - MARCH 13: President Donald Trump (L) speaks beside Secretary of Defense James Mattis (R) during a meeting with members of his cabinet in the Cabinet Room of the White House on March 13, 2017 in Washington, DC. This was the first official meeting of Trump's cabinet. (Photo by Michael Reynolds-Pool/Getty Images)

WASHINGTON, DC - MARCH 13: President Donald Trump (L) speaks beside Secretary of Defense James Mattis (R) during a meeting with members of his cabinet in the Cabinet Room of the White House on March 13, 2017 in Washington, DC. This was the first official meeting of Trump's cabinet. (Photo by Michael Reynolds-Pool/Getty Images)