This seems all too timely. It was actually done a while ago, in 2004, as an illustration for Kitchen Sink Magazine from San Francisco.
An article by Monique Montibon Kundahl, on the topic of activist oriented politics in film.
Had my own way with it, the visual reference was from one of the films mentioned, Nashville. This van appears rolling through a lot of the film. In the magazine it was black and white, and accompanied by a quote from one of the main characters, the candidate Hal Philip Walker.
"Let me point out two things. Number One: All of us are deeply involved with politics whether we know it or not and whether we like it or not. And Number Two: We can do something about it."