There is no north and south mason Dixon line this time. It's a war of ideas and beliefs between the right and left.
One group wants big government, lots of regulations, government to exist to take care of everyone, doesn't mind as much being taxed higher etc.
The other believes in increased personal freedoms, smaller government, less government intrusion, and lower taxes.
The two groups have values that are in direct conflict and incompatible with each other.
Geographicaly the liberals are more or less in the north east, great lakes, washington DC, west coast. The fiscal conservatives are more or less in the mountain west, heartland and south.
But even those boundaries are nor all encompassing. Because within those groups even the same states can have opposition. The rural areas tend to be more conservative, urban more liberal and suburbs are a mix of everything.
The battle is being fought now in politics where we have complete grid lock.
Democrats want to keep pulling the country to the left, conservatives trying to stop it and pull country to the right and in the middle are the token establishment RINO republicans that just want to keep the status quo and hang on to whatever power they can.
That's just my .02 cents rambling