President Donald Trump speaks about the canceled summit with North Korean leader Kim Jong Un during a bill-signing ceremony at the White House on May 24. (Win McNamee/Getty Images)
U.S. President Donald Trump (R) and German Chancellor Angela Merkel (L) hold a joint news conference at the White House on April 27. (Photo by Alex Wong/Getty Images)
North Korean leader Kim Jong Un and South Korean President Moon Jae-in pose for photographs during the Inter-Korean Summit at the Peace House on April 27, 2018 in Panmunjom, South Korea. (Photo by Korea Summit Press Pool/Getty Images)
Donald Trump speaks at a rally organized by the Tea Party Patriots against the Iran nuclear deal while campaigning for president in Washington, D.C., on Sept. 9, 2015. (Nicholas Kamm/AFP/Getty Images)
A helicopter takes off from a U.S. Coast Guard cutter one week after the passage of Hurricane Maria in San Juan, Puerto Rico, on Sept. 27, 2017. (Ricardo Arduengo/AFP/Getty Images)
U.S. President Donald Trump attends the ceremonial swearing-in of Secretary of State Mike Pompeo at the State Department in Washington, D.C. on May 2, 2018. (Saul Loeb/AFP/Getty Images)
U.S. Marines stack hurricane relief supplies from the U.S. Agency for International Development in Dominica on Sept 29, 2017. (Sgt. Melissa Martens/U.S. Marines via Getty Images)
National Security Advisor John Bolton listens to President Donald Trump speak during a cabinet meeting at the White House on April 9.
(Nicholas Kamm/AFP/Getty Images)