Philip Wallach is a senior fellow at the American Enterprise Institute (AEI), where he studies America’s separation of powers, with a focus on regulatory policy issues and the relationship between Congress and the administrative state.

In his latest book Why Congress (Oxford University Press, 2023), Dr. Wallach defends the centrality of Congress in America’s constitutional system, traces the roots of current dysfunction, and suggests how the institution might be restored.

Before joining AEI, Dr. Wallach was a senior fellow in governance studies at the Brookings Institution, where he authored To the Edge: Legality, Legitimacy, and the Responses to the 2008 Financial Crisis (Brookings Institution Press, 2015). He was later affiliated with the R Street Institute and served as a fellow with the House Select Committee on the Modernization of Congress in 2019.

Dr. Wallach’s scholarly and popular work has been published widely, including in the publications of the Brookings Center on Regulation and Markets, Studies in American Political Development, Fortune, National Affairs, National Review, Law & Liberty, Los Angeles Times, RealClearPolicy, the Bulwark, the Hill, the Wall Street Journal, and the Washington Post. A frequent conference participant, he has lectured at William & Mary, the University of Oregon, Northwestern University’s Medill School of Journalism, and the University of Michigan, among others.

Dr. Wallach received a master’s and doctorate in politics from Princeton University and a bachelor’s degree from Wesleyan University’s College of Social Studies.