On a recent Monday morning, Colbert scanned a preliminary script for that evening’s show, on which topic one was Republican Mark Foley and his lewd messages to teenage congressional pages. Colbert was practically giggling. “This is my favorite part,” he said, then slipped into his character’s voice. “People, you don’t understand: He was the co-chairman of the Caucus for Missing and Exploited Children!” He cracks up, partly at the delectable irony and partly at the word caucus. The underlying message in his grin, though, is clear: Seriously—you can’t make this shit up.