This would be funny if it wasn't so untrue (from the American Chronicle):

"Huckabee praised McCain for running a clean campaign in South Carolina, insinuating that Romney did not."

For evidence that Huckabee is clueless or dishonest, check out the independent, non-partisan factcheck.org:

McCain is sending out a postcard mailing in South Carolina that is misleading on more than one point.

It says that "Romney provided taxpayer-funded abortions," a distortion. Romney's Massachusetts health-care plan faced a court order requiring abortions to be covered.

It says Romney "refused to endorse Bush Tax Cut Plan," but fails to note that McCain himself voted against it.

Huckabee wants to be McCain's vice-president, and that's why he can overlook dishonest campaigning.