Trump insists that the need to build a wall responds to “a humanitarian and security crisis.”
Trump’s presidential display was short-lived, and he soon began [blaming] immigrants ... for virtually all of the ills of U.S. society.
[I]f Trump gets his way, if his blackmail and distraction work, he will use these methods again and again. It would be the triumph of insanity.
[F]or Trump, the battle for the wall is more important than the wall itself.
So Trump, like Humpty Dumpty, must have his wall, and his fall.
Trump can either agree to a humiliating climbdown or make good on his threat to declare a national emergency.