is outta the Romney camp. From AP:

Murphy had publicly expressed ambivalence about working on a Romney presidential campaign as long as there was a possibility that McCain, an Arizona Republican, may make a second presidential bid. Both Romney and McCain have yet to announce their decision on a presidential candidacy.

Murphy says: “It’s just that I love John McCain very dearly and I also feel very close to Mitt Romney. I have a personal belief that when you work for somebody as intimately as I do, they trust you with a lot of information and let their guard down around you. I feel it wold be unethical to work against somebody who’s trusted your with everything.”