Trajectory of Power: The Rise of the Strongman Presidency

A penetrating account of how, over many decades, conservative backlash to the administrative state led to the rise of a strongman presidency that threatens American democracy

In Trajectory of Power, leading political scientists William Howell and Terry Moe provide a sweeping account of the historical rise of presidential power, arguing that it has now grown to the point where, in the wrong hands, it threatens to subvert American democracy and replace it with a de facto system of strongman rule, whether led by Donald Trump or someone else.

The book shows that, for much of the twentieth century, Republican and Democratic presidents pursued power in very similar ways and almost always within democratic bounds. But Republican presidents since Ronald Reagan, in a transformation that has grown increasingly extreme over time, have gone beyond the "normal" incentives that have traditionally shaped presidential behavior--and still shape the behavior of Democratic presidents--to pursue a presidency of such expansive unilateral power, and with such disregard for basic democratic requirements, that it puts democracy at serious risk.

Trajectory of Power traces this divergence in approach to the backlash of conservatives against the administrative state, and to their epiphany that a war on big government could only be waged through a presidency of extraordinary power. With this vision in mind, Reagan's Justice Department pioneered the Unitary Executive Theory, which justified vast expansions of unilateral presidential power and was further radicalized over the decades as the Republican Party became more ideologically extreme, more populist, more anti-system, and ultimately more supportive of a strongman presidency.

Timely, urgent, and original, Trajectory of Power reveals how the presidency has been profoundly transformed during the modern era--and why it now puts our democracy in imminent danger.

Author: Terry M. Moe,William G. Howell
Publisher: Princeton University Press
Published: 08/19/2025
Pages: 328
Binding Type: Hardcover
Weight: 1.40lbs
Size: 9.40h x 6.30w x 1.10d
ISBN: 9780691276175


Review Citation(s):
Kirkus Reviews 06/15/2025

About the Author
William G. Howell is dean of the School of Government and Policy and professor of political science and public policy at Johns Hopkins University. Terry M. Moe is the William Bennett Munro Professor of Political Science Emeritus at Stanford University and a Senior Fellow Emeritus at the Hoover Institution. Together, Howell and Moe are the authors of Presidents, Populism, and the Crisis of Democracy and Relic.