Everybody is thinking of the US Civil War — which was a specific type of civil war (a regional secession movement).
I agree with you, Ray. There is no regional component to this conflict to crystalize it along historically familiar lines. It’s much more likely to be civil unrest. A renewed interest in civilian militias (which the Media will portray as Cults or Organized Crime). Widespread civil disobedience (including tax evasion).
Maybe closer to that schlockey Kevin Costner movie, “The Postman”, but without the post-apocalyptic overtones.
That would be like the British Civil War of the 17th century and the Collapse of the Roman Republic during the period 150 BC - 50 B.C.
See if any of this sounds at all familiar....
The power struggle between the ... Democrats and the conservatives culminated in July ... in the passing of the Senate bill that eventually became the "Power Act", which incorporated a plan by the Democrats to substantially increase the power of Congress, in which they had a majority; it also furthered independence by restricting influence on domestic affairs....
[snipped a little bit, here and there....]