So, this movie is scheduled for a remake. I imagine they will change the setting, as the original was set in the distant future of 2019. In this future, it is said in the movie's promotional material, America's finest people don't run for president. They run for their lives.
It's not a documentary, although some of its "reality tv" predictions did come true (if you paint with a broad enough brush).
The rights to the story on which this movie was based were purchased by someone who didn't know who the author was.
Appropriately, the name of the movie was the nickname of a political campaign tour bus in the early aughts (a little over 20 years ago).
The villain was played by a man remembered less as an actor than by the profession he parodies in this movie.
With a non-literal wink and a nod, the main character utters a line made famous by the actor who plays him in another movie/franchise entirely.