U.S. President Donald Trump (2nd L) and first lady Melania Trump (3rd L) welcome President Andrzej Sebastian Duda (R) of Poland and his wife Agata Kornhauser-Duda (L) during their arrival at the South Portico of the White House September 18, 2018 in Washington, DC. While Trump made Poland the first stop on his European tour last year, Duda is on his first trip to the White House. (Photo by Alex Wong/Getty Images)