Those old enough to remember the decades before the ’90s, then, may tend to see permanent majorities around the corner because they expect a return to normalcy. Mr. Fiorina, by contrast, argues that frequent shifts in political control are now the norm because of the way the parties have changed. He rejects the common view that American voters are “polarized.” Instead, he says, the parties have become polarized, in a process he calls the “sorting” of the electorate.
So we have parties captured by extremists, and voters trying to find the moderates. Possibly related: Nassim Taleb’s forthcoming book.