Jon Stewart humiliated pundit Tucker Carlson with a public deconstruction years ago. But his disassembling of media villain Rupert Murdoch last night was, in a way, more damning.

Sitting across from Michael Wolff, the News Corp. chairman's moonstruck biographer, Stewart called Murdoch humdrum and hormonal and, worse, a letdown from the Citizen Kane figure he'd been expecting. (See video above.)

Wolff rather vigorously (and ludicrously) countered that Murdoch may be the most powerful man on the planet. But by the end of his segment he hadn't changed the verdict:

Murdoch may run a feisty tabloid, sleep with a trophy wife, dominate Wall Street's news agenda and control a vast array of other media properties, including Stewart's favorite quarry, Fox News. He may want to leave a legacy. But the coolest guy on television just called him boring.

(He'll probably blame Wolff and his biography. Fair enough. The guy was mousy.)