It's our 250th episode (!) and historian Megan Kate Nelson joins us for a very Nostalgia Trap conversation about the deep, unresolved contradictions coursing through American history. Her latest book, The Three-Cornered War: The Union, the Confederacy, and Native Peoples in the Fight for the West, reframes our vision of the Civil War, showing how westward expansion, abolitionism, and the extermination of indigenous peoples were folded into a nation-making project that determined the fate of a continent. Along the way we talk about epic battles in hot deserts, the desperate economy of water and whiskey, and why the Ken Burns version of the Civil War so urgently needs to be put to rest.