54,115 votes and 956 comments so far on Reddit

Ive actually wondered what would happen if you made some massive scale experiment like that if ever possible.
Like say, build two identical cities, designed to have say, 1 million residents with proportional values to a typical large city (as in cheap apartments, small houses, large houses etc.) and the requisite facilities to run the city (businesses, stores, hospitals, municipal functions and the like) have republicans/democrats each elect a (initial) president and other leaders to run their own dem/repub only city. Basically replicate the entire federal government and judiciary on a smaller scale.
Then fill them with volunteers entirely from registered dems/repubs, with citizens running everything from the corner stores to the hospitals and water treatment etc.
Allow them to make entirely their own laws (starting from existing laws) with very few restrictions.
Then see what happens.