I am not pushing Obama here-- just saying Trump could have copied Obama's order and done everything Trump wanted without getting wrapped up in the courts. Remember when Trump said he wanted to have a list of 7 countries and Obama did the same? Trump was correct about the list, but Obama used the list to vet people, but he did not base his order on terrorist coming from just 6 countries (Trump had 7 like Obama, then cut it to 6). All Trump had to do was have the order deal with stopping terrorists from entering no matter where they came from, but pay special attention to the 7 countries that were training and supporting terrorists (like the Manchester terrorist who was not from Trump's 6 countries but travelled to one). Trump would not be wasting time in court if he did it right.