This is George Carlin's 140th appearance on the Tonight Show (including with previous hosts); this is also his 50th year in show business.
Ann Coulter's book Godless: The Church of Liberalism debuted #1 on Amazon.com and NYT Bestseller List.
Carlin largely kept quiet during Coulter's segment. The show kept it as separate guest segment, rather than a panel.
Ann Coulter: The funny thing is I'm calling Liberals Godless, well, they're fine with that, just don't call say anything about the Jersey Girls.
George Carlin: I never thought that when Ann Coulter came out, I would have to move to the right. But I did.
Many news outlet reported the fact that Ann Coulter and George Carlin are on the same night.