Donald Trump sings the national anthem with a U.S. Army chorus during a "Celebration of America" event on the south lawn of the White House June 5, 2018 in Washington, DC. (Win McNamee/Getty Images)
North Korea's leader Kim Jong Un reacts at a signing ceremony with US President Donald Trump during their historic US-North Korea summit, at the Capella Hotel on Sentosa island in Singapore on June 12, 2018. (SAUL LOEB/AFP/Getty Images)
Canadian Prime Minister Justin Trudeau, German Chancellor Angela Merkel, U.S. President Donald Trump, then-Italian Prime Minister Paolo Gentiloni, French President Emmanuel Macron, Japanese Prime Minister Shinzo Abe, and U.K. Prime Minister Theresa May pose for a photo at the G-7 summit in Sicily on May 26, 2017. (Miguel Medine/AFP/Getty Images)
Former U.S. National Security Advisor Zbigniew Brzezinski and former U.S. Secretary of State Henry Kissinger at the Nobel Peace Prize Forum in Oslo on Dec. 11, 2016. (Terje Bendiksby/AFP/Getty Images)
British Prime Minister Theresa May, German Chancellor Angela Merkel and French President Emmanuel Macron following a meeting on the sidelines of the European Union leaders summit in Brussels, on March 22, 2018. (LUDOVIC MARIN/AFP/Getty Images)
A huge screen in Tokyo flahes news on March 8, 2018 that President Donald Trump and North Korean leader Kim Jong agreed to meet for talks. (TOSHIFUMI KITAMURA/AFP/Getty Images)
An actor portrays President George Washington as he poses for a selfie with visitors at the Mount Vernon Estate in Mount Vernon, Virginia, on Feb. 22, 2017. (Chip Somodevilla/Getty Images)
North Korean leader Kim Jong-Un attending an art performance dedicated to nuclear scientists and technicians. (Photo credit should read STR/AFP/Getty Images)