https://www.conservativereview.com/commentary/2017/03/5-facts-you-need-to-know-about-hawaiis-unhinged-lawsuit-against-trump

I'll just let a more learned dude speak for me.  I agree w/ this article.  I don't know of which rules you speak.  If you are talking about the case in 1948 that led to the law in 1952, which the administration used in the first and now this latest EO...it is clear that the President has been invested w/ the power and authority to do exactly what he is trying to do.  Do you disagree?  Or do you feel that he is discriminating against Muslims, but hiding behind the law?