Abstract: In Legal Reasoning and Political Conflict, Sunstein, one of America's best known commentators on our legal system, offers a bold, new thesis about how the law should work in America, arguing that the courts best enable people to live together, despite their diversity, by resolving particular cases without taking sides in broader, more abstract conflicts. Sunstein offers a close analysis of the way the law can mediate disputes in a diverse society, examining how the law works in practical terms, and showing that, to arrive at workable, practical solutions, judges must avoid broad, abstract reasoning. He states that judges purposely limit the scope of their decisions to avoid reopening large-scale controversies. Sunstein calls such actions incompletely theorized agreements. In identifying them as the core feature of legal reasoning, he takes issue with advocates of comprehensive theories and systemization, from Robert Bork to Jeremy Bentham, and Ronald Dworkin. Equally important, Sunstein goes on to argue that it is the living practice of the nation's citizens that truly makes law. Legal reasoning can seem impenetrable, mysterious, baroque. Legal Reasoning and Political Conflict helps dissolve the mystery. Whether discussing abortion, homosexuality, or free speech, the meaning of the Constitution, or the spell cast by the Warren Court, Cass Sunstein writes with grace and power, offering a striking and original vision of the role of the law in a diverse society. In his flexible, practical approach to legal reasoning, he moves the debate over fundamental values and principles out of the courts and back to its rightful place in a democratic state: the legislatures elected by the people.