Surely Rudy knows he has no chance after 2008, and I do think he felt screwed by the Mittster. Whether he felt screwed enough to help Palin, who is pretty far on the other side of most issues than he is, is debatable. But I’d welcome him in the NH race if he weakens Mitt.
The author drew the parallel of Giuliani’s loss to Dinkins, then his comeback in the next election. If Giuliani knocks out Romney, it gives conservatives a clear shot at the nomination.