WASHINGTON (AP) — There were all the trappings of a high-octane presidential debate: the over-the-top declarations, the pre-practiced zingers and the schmaltzy appeals to America's truest values. But the presidential candidates were nowhere to be found.

In their place Saturday were two celebrity gabbers who have claimed their stakes to the polar opposite ends of the political spectrum: Bill O'Reilly and Jon Stewart. The political odd-couple came to Washington ready to tangle in an event mockingly dubbed "The Rumble in the Air-Conditioned Auditorium."

Choice words not suitable for the faint of heart dotted the 90-minute exchange between the Fox News anchor and the star of Comedy Central's "The Daily Show," who bantered aggressively but good-naturedly over birth control, President George W. Bush and the so-called "War on Christmas."