The book investigates the foundational principles and practical mechanisms of the American electoral system. Walter Berns, a distinguished scholar, examines the historical context and constitutional basis of the Electoral College, the established procedures for presidential succession, and the complex interplay between the Constitution, federal and state laws, and political party rules that govern American presidential elections.

The book is regarded as a clear and authoritative explanation of complex electoral processes. Its strength lies in its comprehensive coverage of the Electoral College, presidential succession, and the layered legal and political rules governing elections. The work is particularly valuable for its ability to synthesize these distinct but interconnected elements into a coherent overview. It serves as a foundational text for understanding the mechanics of American presidential selection.