I've got to know: what right-wingers? And how does their right-wingness manifest in the movie?
The main ones were Mark Cuban and Ann Coulter as President and Vice-President. Michelle Bachmann was in it too, as was lame blue-collar comedy idiot Bill Engvall. As to how their right-wingness manifests itself in the movie, I didn't watch it so I have no idea. I read at the time that the producer was either a regular Fox News talking head, or had Tea Party ties, or something like that, so I just never bothered with it. I only saw part 4 because it was on telly one day and I was bored.
Part 3 also has Jared Fogle, later convicted on child porn charges, Anthony Weiner, famed penis-displayer, and Matt Lauer, later forced to resign in disgrace after women he'd sexually abused started coming forward, so there's that, too.