on a related note, I think a big takeaway not just from tonight, but tonight as the culmination of the last 20 years, is that it may be an existential issue for American democracy to move toward some kind of proportional representation that makes parties outside the big two a viable possibility, even if it's a UK-style minor parties are just spoilers/kingmakers/coalition filler rather than a true multiparty democracy. Two-party democracy simply becomes untenable when mutual antipathy builds to a point where one side begins systemically gaming and subverting political norms to keep the other side out of power. there has to be some kind of release valve for the buildup of toxicity in the current zero sum binary.
I always bring it up, but that was the immediate cause of the end of the Roman Republic. 80 years of increasingly bitter (and often violent) partisan divide culminating in the Optimates so hating and fearing Caesar that they were willing to do anything to keep him from returning to power, even bluff civil war, which bluff he of course called. our partisan divide is younger, its underlying causes are different, and it's (so far) not as bloody, but the lesson is that once you destroy political norms and faith in those norms they're extremely difficult to restore. again that isn't just about Trump, tho he has done more than any other individual to destroy those norms.
MA had a ranked-choice voting measure on tonight's ballot but it lost. a couple other states I can't remember had similar measures and idk how they turned out.