The Republicans emerged from a wilderness in the 2020s growing a neo-Eastern Establishment of ex-Democrats disaffected with their states' one-party machines, though it often clashes with the right-wing populist wing and they're still generally the losing party. The Sun Belt has become the Democrats' base. There's also a lot of polarization along racial lines.
This I disagree with. The way the South flips en masse is a
decline in racial polarization. If the Southern white vote comes into line with the nationwide white vote, the entire Deep South becomes Safe Dem.
