What's happening in global politics, and is there a thread that ties it all together? There is, and it is called populism. What is populism? And why have populist parties and candidates suddenly sprung up and even gained power in the United States and Western Europe? The emergence of Bernie Sanders and Donald Trump, France's Marine LePen, Podemos in Spain, Syriza in Greece, and the Alternative for Germany are signs that an older consensus about politics and government is breaking down. John B. Judis, one of America's most respected political analysts, tells us why we need to understand the populist movement that began in the United States in the 1890s and whose politics have recurred on both sides of the Atlantic ever since. The Populist Explosion is essential reading for anyone hoping to grasp a global political system that is only just beginning what will be a long-running and highly consequential readjustment.