Rudy Giuliani is “very disappointed” in Arlen Specter, for whom Giuliani campaigned.

Rudy switched from Democrat to Republican when Reagan became President, on two issues where he felt democrats were WEAK:

Economy
National Security

Giuliani says the GOP is made of a lot of people, including the superconservatives, but on economic issues & national security, he is very comfortable being a Republican.

(With Neil Cavuto on Fox)