If you look at the internals, this poll appears to be heavily skewed with evangelical respondents. Huckabee up from 2% to 5%...Really??
Probably on purpose. Another blog I saw noted that a lot of these other polls that tend to have a stronger than average Carson skew heavy elderly and evangelical— which is where Carson gets his strength, as he doesn’t have much broad support elsewhere.
Obviously, someone figured out that’s how they can bring Trump down (in the polls). Just skew the one group he isn’t absolutely dominating.
A lot of touchy feely mainline denomination do gooder types who don’t know their butts from a cork pistol about politics, who voted for Obunga strictly to prove they weren’t racists, are the ones puffing Carson’s numbers. I know this because I have several dippy relatives who fit the above description.