Each party drafts their favorite prospects, like in pro sports. Each party goes out looking for the best, smartest candidates. They select from a variety of trades, and educational backgrounds, but probably a number of the best law school graduates. These draftees go to 4 years of intense training to become president. They live on campus. They are all under surveillance 24/7 to weed out any bad, shifty ones, that were breaking the rules. They are paid very well while they attend presidential school, so they are motivated to do their best. They must WANT to be president. They study 4 years of: political science, history, economics, civics, etc. Trump would have never survived such a screening. When the candidates graduate from presidential school, they can run for president.