Honestly, I don't know if Hugh Hewitt's criticism of Mike Huckabee here – suggesting that it's a huge deal that Huckabee did not immediately know about the new National Intelligence Estimate of Iran, and further that he didn't immediately have developed an opinion of that estimate and its consequences – can actually be traced by to his devoted support for Mitt Romney. I say this because he shows a mindset that has been known to exist outside of political shillery: namely that being an intelligent, informed person involves being intimately aware of the stories, scandals, and talk currently hot in the mainstream press news cycle.
Specifically, Hewitt says that Huckabee makes an "astonishing admission of cluelessness" when he admits he was not aware of this bit of news. This suggests a certain obsession with novelty, an idea that one must be continuously monitoring events in order to make intelligent, informed decisions. This despite the fact that this bit of "news" discusses a viewpoint of events years old!
Maybe it's because Hewitt has his radio show to do, in which he must be continuously new to a degree in order to maintain an audience, maybe it's a sickness likely to afflict anyone who follows too much the mainstream press and their continuous news cycle, and maybe it comes with territory of having a website in which he himself reacts to news, but I don't think it's necessarily correct to pin this on a bias for Mitt Romney.