If Trump continues, a Court may well cite him for contempt, regardless of any outcome of all of this.  Mr. Dershowitz is correct, all he need do is rescind the order, save everyone a lot of time and money, and re draft it properly; which is what an adult would do.  I am not so sure I agree with Mr. Dershowitz that the court will cut and paste the "good" parts with the "bad" ( constitutional or unconstitutional)......they don't need to do the President's work, the President needs to do it.  It will be interesting for everyone, in particular lawyers, to watch how this is ultimately decided.