How would Mr. Trump have reacted? "I've got to tell you, if that were me, I would say, 'You know what, folks, I respect you a lot but close the doors, let's get out of here,'" he told a group of labor leaders in Ohio on Monday. "It's a sign of such disrespect," Mr. Trump complained, "they won't even give him stairs, proper stairs to get out of the airplane. You see that? They have pictures of other leaders who are ... coming down with a beautiful red carpet. And Obama is coming down a metal staircase."