Coalitions that would give one party a lock on power?

[Schiff for Senate]

In about 30 years (or possibly even less), Democrats' current coalition.

[Schiff for Senate]

gop dropping abortion and talk of "entitlements reform" would swing enough close north/western areas+shore up the south to get the GOP in power a long time

Thankfully, this alone would not be enough. I do think a socially centrist but economically right-wing GOP could be powerful, however, and it's a party I might support (assuming they support the environment and oppose guns).