Then it should be an objective test. Familiarity with current events, geography, physics, calculus, micro and macro economics. Final exam of 101 courses would be sufficient. 80% or higher and you get to take office, otherwise the next highest voted politician gets a shot at it.
A board of representatives from the 10 largest public colleges gets to write, administer and grade the test.
Fun fact: most gasoline car fires are started by electrical issues. Mechanical fuel pumps died out with the carburetor, just about every car made has hot wires going to the gas tank. The conflagration is completely fueled by gasoline though. Diesel is pretty hard to ignite, you can toss a burning match into a pool of diesel and the match will go out. But once ignited it'll burn like a champ.