It sounds like the plot of some brain-dead Hollywood comedy that has already been made too many times: Movie executive: OK, here’s an idea. You know those geniuses who Jay Leno used to interview on the street who couldn’t answer basic questions like who the vice president is, or what Columbus Day celebrates? Well, what if someone like that ran for Congress and actually won? How funny would that be!Producer: Great! We’ll get Amy Schumer or Lena Dunham to play the lead!Executive: No, I said it’s supposed to be funny. Yes, you’ve seen some version of this before. It was...