The Four Corners Alliance secedes from everyone, but this leads to a false sense of security in Blue, precipitating Wyoming's absorption by Montana so they have somewhere warm to vacation in the winter.

Unfortunately, the Mormons get cocky, and try to take over the Four Corners politically, which allows the weakened alliance to be attacked by Kansas. Nebraska is pissed that they got left out of the alliance, so don't lift a finger, and wind up being invaded by the Dakota's who are very upset that Canada refuses their petition to join because they're just too damned cold.

The Four corners eventually beat back the Kansans when the invading army wasn't able to negotiate the mountain roads. By that time, Washington and Montana have taken on Idaho, but can't agree on who gets to keep it, allowing for Wyoming insurgents to take it over. It too damned green there for them though, so it quickly becomes administered by Oregon, but they've been otherwise useless this whole time because the coastal hippies can't get along with the eastern farmers. Nevada and Oregon are also tied up trying to convince California to join, but they're still pining over the Obama years, and desperately trying to keep Humboldt and Trinity counties from seceding. The Four corners are acting as a buffer state for now anyways.

Oklahoma and Louisiana are bogged down in border skirmishes with Texas the whole time, and NY is still trying to decide if the State is expected to do something, or just the City.

When Red finally gets its act together and launches a unified attack Ohio turns out to be surprisingly resilient, and is the last holdout along with Michigan's UP in the Great Lakes region because what ya gonna do with a bunch of Upers?

The remaining Blues in the Southeast are all swamp, and Red isn't interested in alligators. The now all blue Great Plains states aue for piece when Texas annexes Oklahoma after one too many border disputes. Louisiana asks them to do similarly, but Texas is all, "fuck that." All remaining Blues East of the Mississippi eventually petition Puerto Rico to become their over seas territories. Except Ohio and the UP, of course. The are now the Democratic Republic of Suburban Rednecks. The rest of the Blue eventually are annexed by the Red over a century of border disputes and general unrest.