In one of their most politically charged tricks, they make an American flag seem to disappear by wrapping it in a copy of the United States Bill of Rights, and apparently setting the flag on fire, so that "the flag is gone but the Bill of Rights remains". The routine may also feature the "Chinese bill of rights", presented as a transparent piece of acetate. They normally end the trick by restoring the unscathed flag to its starting place on the flagpole; however, on a TV guest appearance on "The West Wing", this final part was omitted. The methods of the trick were revealed by the duo in an episode of "".