And because of that, it will most likely be summarily reversed in the courts, the same way his immigration bans were reversed. And all at the long term cost of a weakened presidential office. Future presidents for a long time will be paying the price for Trumps stupidities.
Could you kindly provide the legal basis, whereby courts run the whole show, and not the President?
There was/is a VERY SPECIFIC law, passed by Congress, giving the President the sole power, for immigration/entry.
I am not aware there is any legal basis for any court to block this measure. This was national defense policy just a coule of years ago, before Obama decided to make it a democrat party platform to make Bradley Manning a cause for democrats.