Sure but fascism isn't just one dude. Them not getting elected doesn't end fascism. We already have fascist in our government. They're in our police force, military, local administrations, legislature, and judicial system. Many of them own significant portions of our national economy, some of them even have international capital. Fascists are willing to cheat, lie, and kill for power. You can't stop that with a single election or even a series of them. If you think that you can then you have vastly underestimated our enemy.

The nazis lost elections before they won them. They didn't go away after losing, they got stronger.

Fascists need to be identified and purged fron official positions, the financial assets of bourgeois fascists should be seized, and most importantly the material conditions (poverty mostly) that made fascism appealing to millions of people need to be resolved. I don't think democrats are willing to do this.