U.S. President Donald Trump speaks while Mahmoud Abbas, president of Palestine, left, listens during a joint press conference in the Roosevelt Room of the White House in Washington, D.C., U.S., on Wednesday, May 3, 2017. Trump welcomed Abbas to the White House on Wednesday as the U.S. president weighs how to approach a Middle East conflict that has eluded resolution for seven decades. Photographer: Olivier Douliery/Pool via Bloomberg