Elections are designed to be democratic. Political parties are largely unregulated and can generally make their own rules about who they choose to run as a candidate. Remember this next time the Republicans get a big group of powerful party members together to say how much they don’t want a certain orange-tinted fascist to be their candidate, their party could have run someone else. Winning was more important. Similarly, the democrats are well within their rights and the law to have previously committed “superdelegates” or just to skip the primary process entirely and run the vice president.