Near the end of this SullyWatch entry is a discussion of an email exchange which, if true, says all that needs to be said about Sullivan:
Early on in his blog career, I used to exchange reasonably polite e-mails with him, since at that point I still labored under the misapprehension that he was merely misguided, not fundamentally dishonest. That all changed rather quickly, after the election, and his bizarre take on it. Finally, I said "I'm going to give you the honest Republican test. If Gore and Bush's situation in Florida had been exactly reversed, do you think the Supreme Court would have made the same decision.?" To which he replied "Probably not, but they did the right thing anyway because Gore doesn't deserve to be president." Swear to god, he actually said that.