A journalistic inquiry into immigration, capitalism, and the far right in the 21st century United States. The book begins with the stories of migrant workers and organizers fighting against Donald Trump’s immigration regime, many of whom have themselves been targeted for deportation, likely as a result of their efforts to build a better world. The book then investigates the recent history and political economy of U.S. nativism, from the dark money-funded think tanks and nonprofits that have provided policy and personnel for the Trump administration to the militant reactionaries doing battle with antifascists in the streets and online. Ultimately, as longstanding American traditions of white supremacy and nationalism respond to the ongoing crises of neoliberal capitalism and climate change, The book argues that a new ideological formation, border fascism, is emerging–one that any internationalist movement for working class liberation will have to reckon with in the struggles to come.