Then ask yourself, why is he not ignoring him? Why?????
Exercise in Creativity.
As freeper DiogenesLamp suggested:
Trump can order the state department to revoke all visas from the affected countries. No Visa, no coming to America. All the embassies which issue the Visas are in foreign countries. No US court has jurisdiction at those Embassies.
Ask yourself this question: why has Congress - both the House & Senate - been entirely silent with regard to such an obvious & unfounded judicial usurpation of their legislative prerogative?
It's because the two other branches are playing tag-team on the executive. Congress is using the court system as a stalking horse to expose and draw Trump out into the open.
Recall that Trump essentially drew a line in when he declared DC was acting in opposition to the American people. Do you think they were going to sit quietly and allow that to happen without a fight?
Time will tell whether Trump was naive enough to think that holding only one branch of government was sufficient to launch a successful attack on the other two, or rather this is a purposeful tactic to draw the other two branches into an indefensible position.
For now, all can see that Congress isn't responding - they are explicitly allow the judiciary to legislate from the bench. Oh sure, there have been various declarations of bills to be introduced, etc. But this may be all stalling tactics to allow other, even more divergent opinions & injunctions to be issued from the bench.
The bottom line is that this situation is much more serious than many/most people are realizing, especially if they continue to focus on the judiciary and not the real king pins behind the movement to neutralize & emasculate the president.