Fallows says he's doing Huntsman a favor:

Getting this into circulation is a magical double-duty favor. It's a favor for Huntsman within the party, as a reminder that he has been willing to advance the straight conservative line when duty calls. (He was McCain's national campaign chairman.) And it's a favor for him with the general electorate, because getting it out now means it will be tired old news by next year, rather than an embarrassing potential "surprise."

As one winces.