PHILADELPHIA - (KRT) - To the naked ear, Howard Stern is still our regent of raunch. Lately, he has groused to his loyal listeners about the zit on his nose and the cellulite on his butt, dished about his morning trysts with his model-girlfriend, and opined on the watchability of DVD porn. But Stern has also ushered in the era of shock-jock politics, so when he split for a long vacation at the start of July, he minced no words: "I'm not only anti-Bush, I support John Kerry. ... He's going to be the guy who gets us back on...