This monograph discusses the role of political parties in Paraguay’s legislature. Using Paraguay as a case study, the author analyzes the phenomenon of legislative chaos. While chaos has been expected to exist in legislatures since at least 1785 (Arrow 1951; Condorcet 1785), this phenomenon has not been observable in real-world legislatures for much of history (Tullock 1967; Tullock and Brennan 1981). By showing that chaos exists in Paraguay, and by then proposing a way to incorporate chaos into existing legislative theories, this volume creates a model that is more generalizable to different legislative contexts than what currently exists. Providing a robust theoretical contribution to the study of both legislative politics and Paraguay’s political system, this book will appeal to researchers and students studying legislative behavior and Latin American politics.