Was thinking about the secession thing while driving today, three hour trip across the state. I have no clue how one would draw country boundaries. Outside of Detroit, Oakland, Wayne and maybe Ann Arbor who else would go blue. Even if you had enough votes to keep the state part of the Blue Union the rest of the state would rebel.
Pretty much the same here. Divide the state from the DC suburbs down to maybe just west and north of Richmond, throw in the Hampton Roads area north of the James River. The rest would probably form a Union with West Virginia, Pennsylvania, Ohio, Tennessee etc….
The east could hook up with Maryland, New Jersey and the east coast. Not sure about Delaware. The were the wild card when this whole thing started around 1787.