Homer: America, take a good look at your beloved candidates. They're nothing but hideous space reptiles.

Kodos: It's true, we are aliens. But what are you going to do about it? It's a two-party system; you have to vote for one of us.

Man1: He's right, this is a two-party system.

Man2: Well, I believe I'll vote for a third-party candidate.

Kang: Go ahead, throw your vote away.