>I think this particular part of Stewart's speech is his "Great
>Dictator" moment. At the end of "The Great Dictator," Chaplin's
>barber gives a speech intending to argue against the dictator
>Hinkel, only to realize that he's adopted the cadences and rhetoric
>of the dictator. Likewise, Stewart's attempt to provide an
>alternative to Glenn Beck ends up producing exactly the same vacuous
>fantasy of American unity that Beck puts forward. The difference,
>though, is that Stewart doesn't seem to realize what he's done.
After Jordan broke it down I saw that Blum's take was too ham-fisted, but I think you're onto something with this.
You can see the Chaplin speech, with commentary from Zizek, on youtube (the Great Dictator bit starts at 3:30):
http://www.youtube.com/watch?v=GnUzc6jqAUA