Separating this country into four entities would at least preserve some form of the Founders’ vision, but too mmmmm the populace seems content to let it all go under.
*too much of the populace…
The Russians determined that America has five grand cultural zones and they could be influenced differently to pull them from the Union.
The West Coast could fall under China’s influence.
The Northern states could fall under the influence of Canada.
The Southern states could fall under the influence of Mexico.
The Northeast.
The Midwest and south.
I don’t remember exactly how America could be divided, if worked on by the Russians, but those are the approximate divisions that they were aiming for.