Just back from being with some committed conservatives, veterans all when it comes to ideological battles.  The consensus was that Pat Robertson's endorsement helps Rudy — not because he commands the allegiance of the "easily led" but because it provides a significant "Exhibit A" rejoinder to the charge that Christian conservatives simply won't support Giuliani.  One expert on gun issues faults the whole GOP field, pointing out that Giuliani was the only Republican mayor to sue gun manufacturers.  I think he shows a lack of understanding here.  If you treated your wife the way Giuliani treated his, would you support guns in the home? 

The consensus candidate was Mitt Romney.  One apparent effect of the Robertson endorsement is to persuade sideline-sitting conservatives who strongly oppose Giuliani to get behind someone who can stop him.