The thing about Buffy and Spike is they understand each other on a level that nobody else understands her.
Meanwhile, politics is about getting a candidate in front of the public as a star, politics as rock'n'roll, politics as a movie.
I mean, first of all, let me say whichever superhero first came up with the idea of wearing a cape, he wasn't really onto anything good. The number of times I'm treading on that damn thing or I throw a punch and it ends up covering my whole head. It's really not practical.