Elizabeth Neumann draws on her experience as Assistant Secretary for Counterterrorism at the Department of Homeland Security under Donald Trump to analyze how elements of evangelical Christianity merged with right-wing politics to create conditions for the January 6th insurrection. Neumann, herself an evangelical, traces her growing alarm as she watched conspiracy theories and apocalyptic thinking spread through faith communities she had grown up in. The book examines how Christian nationalism - the belief that America has a special divine mission that must be defended against secular enemies - provided both motivation and moral justification for political violence. Neumann interviews participants in the January 6th events, many of whom describe their actions in explicitly religious terms, and traces the theological and political streams that flowed together that day. She examines the role of social media in radicalizing believers, the failure of church leaders to counter extremism, and the specific grievances around abortion, religious liberty, and cultural change that made violence seem justified. Unlike outside critics, Neumann writes as someone who understands evangelical culture from within and believes it has been corrupted by political alliance. Her analysis offers both a warning about ongoing radicalization and a call for religious communities to reclaim their traditions from those who would weaponize faith for political ends.