I'm already seeing what I hope to be the Dems' Achille's Heel, namely The Squad and several of their more "Progressive" members already trying to out-Socialism each other, mostly from their perception that America will tolerate the stupidity in actual legislative terms. My hope is they either become so mired in infighting, or get so hyper-focused on things which America In General, even Liberal America, will soundly reject, that they become functionally useless in the legislative sense. Maybe they will regularly introduce bills so egregious that SCOTUS is finally forced to render decisions which cement a more Conservative legal framework for future legislation (concentrations on First, Second, and Fourth Amendments).
Another thing I'm seeing is the more Centrist-oriented Dems eyeballing historic precedents of midterm elections going to the opposing party. Therein lies their concern for losing cushy positions of perceived power, and also of ending up with veto-proof majorities in both houses ... though History also indicates Repubs will likely squander any such opportunity. That tends to moderate tones somewhat, especially for Lib-leaning reps from flyover states and districts not firmly ensconced Lib-majority regions.
Still, we'll be dealing with plenty of stupid for at least the next two years. I just hope cooler heads prevail and Libs don't push things to the breaking point, either socially or economically.
Brad