Red America and Blue America are so divided they could be two different countries, with wildly diverging views of why government exists and who counts as American. Their ideologies are grounded in different versions of American history, endorsing irreconcilable visions of patriotism and national identity. A Great Disorder is a bold, urgent work that helps us make sense of today’s culture wars through a brilliant reconsideration of America’s foundational myths and their use in contemporary politics. Richard Slotkin identifies five key narratives that have shaped our conception of what it means to be American: the myths of the Frontier, the Founding, the Civil War (with dueling views of it as Liberation or the Lost Cause), and the Good War. Today, Slotkin argues, Trump and his MAGA followers play up a frontier-inspired hostility to the federal government and rally around Confederate symbols to champion a racially exclusive definition of American nationality; meanwhile, Blue America takes its cue from the protest movements of the 1960s, envisioning a limitlessly pluralistic country in which the federal government is the ultimate enforcer of rights and opportunities. With these opposing perspectives, American history-and the foundations of our democracy-has become a battleground. It remains to be seen which vision will prevail.