The acting AG did not disagree with Trump on the law, she simply thought the immigration order wasn’t “wise or just”.

News flash: you cannot have a government bureaucrat acting capriciously and arbitrarily decided which laws to enforce. It leads to lawlessness, or anarchy. She is a disgrace and deserved to be fired.

http://hotair.com/archives/2017/01/31/sally-yates-wanted-to-get-fired-right/