David Brooks has a very good column over at the NY Times about the Caucus results. I think he does a good job at fleshing out Huckabee's rise:
"Democrats talk about wages. But real middle-class families have more to fear economically from divorce than from a free trade pact. A person’s lifetime prospects will be threatened more by single parenting than by outsourcing. Huckabee understands that economic well-being is fused with social and moral well-being, and he talks about the inter-relationship in a way no other candidate has."
I don't think Huckabee will win the nomination. The party establishment will be against him but more interestingly, I think the evangelical policy leaders such as James Dobson and Richard Land will seek to torpedo his candidacy.