John Bolton, the ambassador to the UN, had this to say in a video I found.

I think at the time I was following the administration policy because I'm part of the administration. I think it's important to be loyal to the policy at the top, when you're not able to do that anymore it's time to get out.

I think in a system of representative government such as we have, your loyalty as a senior official has to be to, what Jim Baker called, "The guy who got elected." What my personal views are something else.

He has stated this opinion before, notably on The Daily Show. He actually believes this shit!!

I can't help relating this view historically, because I'm almost done with The Rise and Fall of the Third Reich. This was a defense tried by Hitler's generals. They knew what they were doing was wrong, but they were obligated to follow orders.