A veteran of New York and national politics, Luis Miranda embodies the relentless spirit of progress of American immigrants. In Relentless, he shares a fascinating narrative of his life and career-from his early days as a radically minded Puerto Rican activist to his decades of political advice and problem-solving. Miranda recounts the thrill of the ascendency of Hamilton, created by his son Lin-Manuel, and he details the suffering after the devastation of Puerto Rico by Hurricane Maria. Amid the triumphs and challenges, Miranda examines what his experience reveals about our ever-changing politics, demographics, and society.