U.S. President Donald Trump awaits the arrival of Finnish President Sauli Niinisto to the White House August 28, 2017 in Washington, DC.

WASHINGTON, DC – AUGUST 28: U.S. President Donald Trump awaits the arrival of Finnish President Sauli Niinisto to the White House August 28, 2017 in Washington, DC. The two leaders are expected to discuss security in the Baltic Sea region, Russia and NATO during the meeting, the first between Niinisto and Trump and the first one-on-one White House meeting between a Finnish and an American president in 15 years. (Photo by Chip Somodevilla/Getty Images)