Gingrich isn't a potential candidate.
Uh...ok, how do you figure? There's an absolutely 0% chance he runs? I don't see that.
He has no shot, and he's been gone from public office far too long. He has better things to do then run a losing campaign at this stage in his life.
Where are you coming up with this? How do you know what Gingrich feels like doing?
He does better than Palin in the polls, does that mean she isn't a potential candidate?
You can't say someone isn't potentially something. He may not be a good one, but of course there's a chance he could be a candidate. In fact there's a great chance according to his own actions.