the fact that he had to walk it back shows just how authoritarian the republican party has become. any member found deviating from party line risks major disciplinary action (remember phil gingrey groveling at rush limbaughs feet for forgiveness a few years back?).
moderates in the party are ostracized and treated as outcasts, which is why huntsman had to walk his statement back, if he wants to remain relevant in todays GOP, hes got to keep his moderation to himself