I listen to him at work a couple nights a week. I honestly think the guy is off his rocker.
Often he'll be discussing current events, and I think, "Hmmm, although I don't agree with him all the time, he knows what he's talking about." Then in the next breath he'll start screaming about deporting or jailing reporters who criticize the administration's policy in Iraq. (Because, of course, that's sedition... giving aid and comfort to the enemy and demoralizing our troops). Then he'll make sense for awhile, then suddenly go off on how his poodle should be allowed to come into the restuarant and eat with him. Somewhere in between, he'll surely remind you that he's the greatest author alive, and you should go buy his latest bestseller first chance you get. Or at least buy a "Savage Nation" baseball cap from his on-again-off-again website, to show you're a true patriot.
I will say, though, that he's one of the very few talk show guys who doesn't just parrot one party line or another. And sometimes he's really funny. Both intentionally and unintentionally... sometimes in the same sentence...
The running joke at work is, "Gee, I wonder if Michael's angry tonight."