NO. She doesn't need to show any "class" when departing, what the heck is that supposed to mean? Would you say that if it were a man we were discussing?? She was the acting Attorney General and independence is paramount, no need for that person to ever keep mum. 

Simply throwing away long time members of Congress like old milk is not a complete answer. While I totally get McCain's shortcomings, he has more sense than any of the tea partiers, his choice of Sarah Palin notwithstanding. There is a lot of new blood in the Senate, but one dimensional is not a good idea when it comes to lawmakers, not for anyone. 

"To him everyone is our enemy and we would send in the military if he had his way."

Funny, that sounds like our new President.