For the record, I am a libertarian and I hate this executive overreach. (Unlike most of you, I also hated it when Obama did it.)
I am also a lawyer.
Trump is going to end up winning on this. I've read both sides, its not even close. Maybe some weirdness in the 9th Circus today could delay it, the are known for being out of kilter with the other federal circuits....but if this made it to the Supremes, it would be unanimous in Trump's favor. The precedents are overwhelming.
Again, to keep from getting called names and dogpiled, I disagree with the order.
The following are quotes from federal law and previous decisions that are still standing. They present a pretty overwhelming case:
The exclusion of aliens is a fundamental act of sovereignty, the Supreme Court held in the 1950 Knauff case, inherent in the executive power to control the foreign affairs of the nation.
It is not within the province of any court, the court noted in that decision, unless expressly authorized by law, to review the determination of the political branch of the Government to exclude a given alien.
Whenever the President finds that the entry of any aliens or of any class of aliens into the United States would be detrimental to the interests of the United States, he may by proclamation, and for such period as he shall deem necessary, suspend the entry of all aliens or any class of aliens as immigrants or nonimmigrants, or impose on the entry of aliens any restrictions he may deem to be appropriate.
When the president has such authorization from Congress, the Supreme Court held in the Youngstown Steel case in 1952, his authority is at its maximum, for it includes all that he possesses in his own right plus all that Congress can delegate.
The Supreme Court held in the 1982 Landon case, an alien seeking initial admission to the United States requests a privilege and has no constitutional rights regarding his application, for the power to admit or exclude aliens is a sovereign prerogative.