U.N. Secretary-General António Guterres, U.S. President Donald Trump, and others wait for a meeting to begin at the U.N. headquarters in New York on Sept. 18, 2017. (Brendan Smialowski/AFP/Getty Images)
Then-U.S. Secretary of Defense James Mattis and Vice President Mike Pence listen while President Donald Trump speaks to the press before a meeting in the Pentagon in Washington on Jan. 18, 2018. (Brendan Smialowski/AFP/Getty Images)
U.S. President Donald Trump speaks alongside Secretary of State Mike Pompeo during a cabinet meeting at the White House in Washington on Aug. 16, 2018. (Oliver Contreras-Pool/Getty Images)
Then-U.S. Secretary of State Rex Tillerson makes a statement announcing his departure from the State Department on March 13, 2018. (Alex Wong/Getty Images)
First lady Melania Trump honors the International Women of Courage awardees during a ceremony at the State Department in Washington on March 29, 2017. (Jim Watson/AFP/Getty Images)
U.S. President Donald Trump and North Korean leader Kim Jong Un hold a meeting during the second U.S.-North Korea summit in Hanoi on Feb. 28. (Saul Loeb/AFP/Getty Images)
U.S. President Donald Trump and Japanese Prime Minister Shinzo Abe walk at the White House in Washington on June 7, 2018. (Chip Somodevilla/Getty Images)
U.S. President Donald Trump walks with with U.S. Ambassador to Canada Kelly Knight Craft to Air Force One prior to his departure from Canadian Forces Base Bagotville in Canada on June 9, 2018. (Saul Loeb/AFP/Getty Images)
North Korean leader Kim Jong Un (right) walks with U.S. President Donald Trump during a break in talks at their historic U.S.-North Korea summit in Singapore on June 12, 2018. (Saul Loeb/AFP/Getty Images)
Yemeni civilians receive food aid in the northern district of Abs, under the control of Iran-backed Houthi rebels, on June 24, 2018. (Essa Ahmed/AFP/Getty Images)
U.S. President Donald Trump speaks with his U.N. ambassador, Nikki Haley, at a United Nations Security Council meeting in New York on Sept. 26, 2018. (Spencer Platt/Getty Images)
Paul Whelan, a former U.S. Marine accused of espionage and arrested in Russia, speaks with his lawyers from inside a defendant's cage during a hearing at a court in Moscow on Jan. 22. (Mladen Antonov/AFP/Getty Images)
A view of the border wall between Mexico and the United States, in Ciudad Juarez, Chihuahua state, Mexico on Jan. 19, 2018.
(Herika Martinez/AFP/Getty Images)
