Donald Trump’s admirers and critics would probably agree on one thing: he is different. One of his chief Republican supporters, Newt Gingrich, describes him as a “unique, extraordinary experience.” And of course, in some ways—his celebrity, his flexibility with the facts—Trump is unusual. But in an important sense, he is not: Trump is part of a broad populist upsurge running through the Western world. It can be seen in countries of widely varying circumstances, from prosperous Sweden to crisis-ridden Greece. In most, populism remains an opposition movement, although one that is growing in strength; in others, such as Hungary, it is now the reigning ideology. But almost everywhere, populism has captured the public’s attention.
What is populism? It means different things to different groups, but all versions share a suspicion of and hostility toward elites, mainstream politics, and established institutions. Populism sees itself as speaking for the forgotten “ordinary” person and often imagines itself as the voice of genuine patriotism. “The only antidote to decades of ruinous rule by a small handful of elites is a bold infusion of popular will. On every major issue affecting this country, the people are right and the governing elite are wrong,” Trump wrote in The Wall Street Journal in April 2016. Norbert Hofer, who ran an “Austria first” presidential campaign in 2016, explained to his opponent—conveniently, a former professor—“You have the haute volée [high society] behind you; I have the people with me.”
Historically, populism has come in left- and right-wing variants, and both are flourishing today, from Bernie Sanders to Trump, and from Syriza, the leftist party currently in power in Greece, to the National Front, in France. But today’s left-wing populism is neither distinctive nor particularly puzzling. Western countries have long had a far left that critiques mainstream left-wing parties as too market-oriented and accommodating of big business. In the wake of the Cold War, center-left parties moved much closer toward the center—think of Bill