I could see this going to the 9th circuit immediately, getting an injunction then making it's way to the SCOTUS where Ruth Bader Ginsburgs ghost wires in a vote siding with Kagan, Soytomayor, Breyer, and Roberts to shut it down permanently.
And our ability to respond to national crises will be crippled in the end but hey, the lefty judged (and yeah, I'm looking at you Roberts) stopped Trump. That's how it goes when five unelected, unaccountable and permanently ensconced people run the country.
I’ll give you two words in response: Second Amendment.
And here are five words that are far more important:
The Will To Use It.
You may want to recall what happened in 2000 with the Florida election. The Florida Supreme Court decided to put a stop to the Presidential election. The Administration immediately went to the Supreme Court where the nonsense was stopped. The first district court who decides to play games will be put in his/her place.