U.S. First Lady Melania Trump, from left, U.S. President Donald Trump, Juan Carlos Varela, Panama's president, and Lorena Castillo Garca de Varela, first lady of Panama, stand for photographs at the South Portico of the White House in Washington, D.C., U.S., on Monday, June 19, 2017. The U.S. is Panama's number one source of imports, accounting for 17 percent or $4.68 billion of the country's total imports, according to Massachusetts Institute of Technology's Observatory of Economic Complexity. Photographer: Zach Gibson/Bloomberg via Getty Images
