The latest national poll (this one via CNN) shows Rudy taking a pretty big dip in the post presidential debate numbers. In fact, it shows him at his lowest point since they begain including him in the survey back in August of 2006. (Now down to 25%)
CNN Poll: Giuliani's Slide  - A new CNN poll out today has Rudy Giuliani at 25%, which is his lowest point all year. John McCain, meanwhile, remains in second place at 23%, with Fred Thompson (13%) and Mitt Romney (10%) filling out the top tier.... [Real Clear Politics ]
In other words, it would seem that what most people who know a little bit about conservative Republican politics have been saying all along is actually true...a socially moderate/liberal (take your pick) pro-choice Republican is not going to win the nomination. And what we've been seeing in the months after his first big splash is the start of the "issues exam" that all the candidates have to go through...and many of the examiners are finding that Rudy comes up a little short. And his recent debate performance, and even more recent revelations  re: contributions to Planned Parenthood have not helped.
And don't forget, this is the guy who once appeared in public in drag ...