Scott Conroy has written a RealClearPolitics article about Mike Huckabee's chances at the GOP presidential nomination in 2016. Conroy concludes that Huckabee is well thought-of among Republicans, particularly among evangelicals, but doesn't like to raise money, a requirement for a presidential run.
I remember thinking, when he was running in 2008, that Mike Huckabee is the best natural campaigner in the GOP. He is simply very good at reaching out to people, at being seen as warm and genuine.
Huckabee's identification with the evangelical wing of the party makes it difficult for him to take moderate stands on social issues.