Grand plans require grand foundations. There has to be an ideology that defines Trump supporters and it isn't some media label like 'white supremacy' or 'alt-right', Trump is tapping into American exceptionalism and nationalism in some form, using executive power grown over the years >>11 and readily available law frameworks like the Patriot Act to create a recipe to authoritarianism.
The Trump allied Supreme Court could be critical ingredient denying the democrats the legal recourse over the coming days, forcing them to rely on local power(ironically state power coming to the forefront is an easy path to civil war) fragmenting states into political camps with different presidents.