Let's not pretend that tonight wasn't a giant assfucking for team Red - I can see the fireball of the VA GOP from here in the Midwest - but part of this result is reversion to blue-state status (NJ, VA), local issues (GA Public Service Commission) and Dems having a propensity advantage via being really mad (PA Judicial races).
Although a "don't extrapolate too much" warning for '26 still applies ('21 didn't correspond to '22, and '23 didn't correspond to '24), I think the GOP moving forward needs to brace for impact in '26. Will we see a redux of 2018? Before today I would have said no (now I think it is possible at the very deep end), and it still isn't a foregone conclusion. But there is still time to mitigate a liberal victory that I think will happen in some proportion next November.
I guess one more thought - Despite everything today, Donald Trump is still President of the United States. Would you have tolerated a Kamala Harris presidency to have gains in the governorships, legislatures, and courts today?