Bill de Blasio’s election as mayor of New York captured the attention of a typically restless city. But it also made progressives across the country—and, indeed, around the world—sit up and take notice. With unprecedented popular support, de Blasio took office pledging to ìput an end to economic and social inequalities that threaten to unravel the city we love. Based on interviews with dozens of key figures in New York politics, including the mayor himself, Eric Alterman’s new e-book is a rigorous, fascinating and indispensable account of what happened next.