It's called a road bump!!!
A group of lawyers drafted up Trump bill to ensure it is up to constitutional requirements. Let's see how the snow flakes react when the bill is over turned. 
Perhaps Trump should just allow Iran to send over who ever they want until  a terrorist attack is committed!!!!
Truly wake up people, tough sanctions and a strong American presence in the Middle East will ensure  retaliation, then what????
Do nothing Obuma is out and Trump is in, deal with it!!!!