The volume offers a chronological account of James Buchanan's private life and public career in the years leading to the Civil War, detailing his purchase of a country estate, diplomatic service in England, presidency, cabinet choices, and political correspondence. It analyzes national controversies over slavery and territorial organization, including the Compromise measures and the Kansas struggle, and traces foreign relations, social episodes abroad, election contests, and inquiries into administration conduct. The narrative relies on letters, official documents, and contemporary reports to present motives, policy decisions, and personal traits that shaped his role in a deeply divided nation.