@Curmudgeon,
I'm not going to defend the Democratic party but I do know that Guliani has a lot of baggage that won't play out well on the national stage.
His extra-maritial affair could be his downfall. Does anybody think the liberal press will pass on that one?
His health might be a factor.
He wasn't exactly a national hero to everyone in New York City, where people knew him.
He has even been know to flip-flop.