When a panel of federal judges ruled in August 2009 that California must release a full quarter of its prisoners, it did more than insist that 44,000 people go free. It asserted that what was once a correctional crisis, marked by deadly overcrowding and monumental prison mismanagement, had become chronic. No longer a temporary phenomenon, the "critical condition" of the Golden State's prisons was now the normal state of affairs. In crisp, vivid prose, The Toughest Beat shows how the California Correctional Peace Officers Association (CCPOA), the labor union representing prison officers and other correctional workers, had transformed from a loose, fraternal organization into one of the most politically potent and feared interest groups in the nation. The book describes how the union promoted ultra-tough policies like "Three Strikes and You're Out," empowered political figures and groups that supported its interests and views on criminal punishment, and frustrated efforts to privatize prisons. And as its leaders made strides for its members, the union also influenced the nature, purpose, and scope of imprisonment. So to understand California's deep and durable penal crisis, Page explains, we cannot neglect the story of this group so often known simply as "the powerful prison guards' union." Page draws on years of intensive research as he uses the lessons of the CCPOA to explore how actors create, shape, and protect their interests and considers whether, by making these mechanisms clear, we might open the door to real and lasting change in the penal field and beyond.