What Is Populism? A Guide to the Political Movement Reshaping Western Democracy

The political science definition

Populism is not a coherent ideology but a "thin" political style or frame. Its core claim is that there are two homogeneous and antagonistic groups — "the pure people" and "the corrupt elite" — and that politics should be an expression of the will of the former against the latter. It can attach to different full ideologies: right-wing populism (Trump, Farage, Orbán, Meloni) combines the people-vs-elite frame with nativist and nationalist content; left-wing populism (Podemos in Spain, early Corbynism, Bernie Sanders) combines it with economic redistribution.

Why populism succeeds

Populism gains traction when established parties are perceived as captured by elite interests and unresponsive to popular concerns — a condition that political scientists call "democratic deficit." The 2008-2009 financial crisis and its aftermath, which saw governments rescue banks while imposing austerity on working populations, provided significant traction for populist movements in both directions. Cultural anxieties about immigration, globalisation and the pace of social change have also been consistent fuel for right-wing populism.

The role of media

Social media has been transformative for populist movements, enabling direct communication with supporters without the mediation of mainstream media — which populists typically characterise as part of the corrupt elite. The algorithmic amplification of outrage and in-group validation on social platforms has been consistently identified as a mechanism that benefits populist political styles over the more qualified register of mainstream politics.

Populism in power

Once in government, populist leaders often use their electoral mandate to concentrate executive power, weaken independent institutions (courts, central banks, media regulators, election authorities) and delegitimise opposition. Hungary under Viktor Orbán is the most studied example of this dynamic in a European democracy — the systematic erosion of institutional checks through legal means. This pattern is visible to varying degrees in multiple countries.