Everyone is delivering post-mortems on Tuesday’s elections, so for what it’s worth, here’s mine: Despite some bitter disappointments and lost ground in the Senate, Democrats won a huge victory. They broke the Republican monopoly on federal power, and that’s a very big deal for an administration that has engaged in blatant corruption and abuse of power, in the belief that an impenetrable red wall would always protect it from accountability. They also made major gains at the state level, which will have a big impact on future elections.
But given this overall success, how do we explain those Senate losses? Many people have pointed out that this year’s Senate map was unusually bad for Democrats, consisting disproportionately of states Donald Trump won in 2016. But there was actually a deeper problem, one that will pose long-term problems, not just for Democrats, but for the legitimacy of our whole political system. For economic and demographic trends have interacted with political change to make the Senate deeply unrepresentative of American reality.