Vladimir Putin

Trump at the UN

Trump at the UN

President Donald Trump will take center stage tomorrow when he delivers his first address to the United Nations General Assembly in New York. It’s an opportunity for Mr. Trump to lay out his ideas about the role the U.S. intends to play in addressing global problems and, equally important, a chance for world leaders to take the measure of a man who has made no secret of his determination to pursue an “America first” policy with allies as well as adversaries. Mr. Trump needs to use the occasion to reassure America’s friends of our continued support while keeping the door open to meaningful negotiations with our opponents on a broad range of issues.

The president’s speech, and private...