If you’re looking for a preview of what Colbert’s upcoming interview with O’Reilly might look like then this video may help. On Tuesday’s show, Colbert had on Dinesh D’Souza to promote his book, The Enemy At Home: The Cultural Left and Its Responsibility for 9/11. As you can probably gather from the title, the book scapegoats liberals for just about every disaster in our nation’s history using selective information and twisted logic.

In the beginning of his tirade, D’Souza gives an oversimplification of Iran’s history (without mentioning Mossadegh), and tries to establish a link between Iran and al-Qaeda. Linking al-Qaeda to the country you want to invade seems to be a neocon favorite. Luckily, Colbert was there to monopolize on every logical fallacy the man made. The more D’Souza talked, the more he dug himself a deeper whole. By the end of the interview, Colbert had ridiculed him to nothing more than a laughable caricature. If only our politicians were half as fearless as our comedians.

Colbert’s money quote: “So what other cultural editing notes should we take from the terrorists?”