Petraeus says he wouldn't serve in Trump administration

“It’s not unreasonable to ask after 17 years of war, ‘is this the best way to go about it,’” Petraeus told BBC Radio Four. “It doesn’t mean that I agree, necessarily, with the recent decisions, but to be truthful we don’t know the details of the policy yet.”

Asked whether he would take Mattis’ job, he said: “I think there does have to be policy alignment [with Trump,] and I’m not sure that exists, I’m afraid.”

That was a reference to Mattis, who in his resignation letter told Trump: “You have the right to have a Secretary of Defense whose views are better aligned with yours.”