The American Presidency examines the constitutional origins of the executive office and the social, economic, political, and international factors that have shaped it over time. In this eighth edition, Milkis and Nelson have updated and revised each chapter to reflect current scholarship and to thoroughly explore the Obama Presidency to date. Tracing the evolution of the presidency over time, the authors touch succinctly on each administration to show how individual presidents have shaped the executive office and reveal the developmental arc of the modern presidency. By emphasizing patterns of presidential conduct, this award-winning book offers perspective and insight on the expansion of presidential power over the years. -- Amazon.com.