supreme court, how could this be damaging for president trump? >> his first attempt to use the president of the presidency in what he sees as the national security interest of the united states, overturned by the highest court of the land. that would be a significant blow. on the other hand, if the supreme court supports him, that was reinforce his power. it would demonstrate that the judiciary can be brought into what he sees as the national interest. it's a high-stakes gamble. >> you have two arguments. one by security. one at the rights of muslims to really travel and to stay in the u.k. constitutionally, which one is stronger? security will always trump the other? >> i mean, the judiciary is receptive to security arguments. but at the end of the day, they're not there to adjudicate security. they're there to adjudicate the law. and the actual interpretation of that will come down a lot to the way in which the argument is put forward. trump hasn't done himself a lot of favors. if he wants to argue this is a