This makes the Competence Primary very important in the Republican nomination contest, and Giuliani is the front-runner in it, although he has competition from Romney, a successful businessman with strong management skills. This doesn’t mean that Giuliani will excel in the Temperament Primary. Some of the qualities that made him a successful mayor — the hunger for power, the jealousy of other centers of authority, the egocentric drive — don’t make him the most pleasant person. And the Ideological Primary will be a major challenge.