American labour history is typically interpreted by scholars as a history of defeat. Hidden by this conventional wisdom are a handful of militant unions that did not follow the putative Congress of Industrial Organizations trajectory. Based on three years of ethnographic research, this book examines a union that organised itself to systematically challenge management’s rule on the shopfloor: San Francisco’s longshore union. American unionism looks quite different than conventional wisdom suggests when everyday union practices are observed. American labour’s trajectory, this book argues, is neither inevitable nor determined; militant, democratic forms of unionism are possible in the United States; and collective bargaining does not automatically eliminate contests for workplace control. The contract is a bargain that reflects and reproduces fundamental disagreement; it states how production and conflict will proceed.