Francis Fukuyama, an acclaimed American political philosopher, entered the global imagination at the end of the Cold War when he prophesied the "end of history" — a belief that, after the fall of communism, free-market liberal democracy had won out and would become the world's "final form of human government." Now, at a moment when liberal democracy seems to be in crisis across the West, Fukuyama, too, wonders about its future.

"Twenty five years ago, I didn't have a sense or a theory about how democracies can go backward," said Fukuyama in a phone interview. "And I think they clearly can."

Fukuyama's initial argument (which I've greatly over-simplified) framed the international zeitgeist for the past two decades. Globalization was the vehicle by which liberalism would spread across the globe. The rule of law and institutions would supplant power politics and tribal divisions. Supranational bodies like the European Union seemed to embody those ideals.