The Banality of Democratic Collapse

America’s democratic experiment may well be nearing its end. That’s not hyperbole; it’s obvious to anyone following the political scene. Republicans might take power legitimately; they might win through pervasive voter suppression; G.O.P. legislators might simply refuse to certify Democratic electoral votes and declare Donald Trump or his political heir the winner. However it plays out, the G.O.P. will try to ensure a permanent lock on power and do all it can to suppress dissent.

But how did we get here? We read every day about the rage of the...