The republicans I suppose. If I recall correctly they were against Obama appointing a judge before the end of his term for some reason while very supportive of Trump appointing judges before his term ended
Every single non-voter in the country willingly allowed the Republicans to fuck everyone over.
Edit: Going back decades, obviously. The latest election has nothing to do with the current SCOTUS. And sure, it's not the American non-voters' fault they're brain dead consumers with no will of their own. It's all very sad, blah blah blah.
It has been studied time and time again. There are simply more registered Democrats than Republicans. If everyone came out to vote, Democrats would win. No question.
One way or another, any government which remains in power is a representative government. If your city government is a crooked machine, then it is because you and your neighbors prefer it that way - prefer it to the effort of running your own affairs.
Hitler's government was a popular government; the vast majority of Germans preferred the rule of gangsters to the effort of thinking and doing for themselves. They abdicated their franchise.