A man can honestly and honorably veer to the right. I don’t know about the intentions of others who may have begun touting more conservative positions to get conservative votes, but I still believe that it is possible for men to be better, greater, and more “right” that they had been in the past. I think Duncan Hunter thinks so, too, and perhaps Duncan Hunter has Mr. Huckabees ear. I can easily see a Mr. Hunter influencing a Mr. Huckabee toward the right. The two actually do have very similar world views at the core, and Mike Huckabee probably has very high regard for Duncan Hunter on a personal and “faith” level.
Not without some force acting on them. Positing Duncan Hunter as that influence is rather groundless IMO. If they're anything like normal people, they are not going to spend any time with each other, and if they do they will spend time together because they like and accept each other, "as-is, where-is," politics aside.
So again, Huckabee should veer right because...? There's no reason to. Right doesn't look like a winner today, and it has already taken Huckabee as far as he's going to get.