Trevor Thrall is a senior fellow for the Cato Institute's Defense and Foreign Policy Department, with expertise in international security and the politics of American national security. Thrall is also an associate professor at George Mason University's Schar School of Policy and Government where he teaches courses in international security.

Thrall's recent research includes work on shifting American attitudes toward foreign policy, an analysis of the role of arms sales in U.S. foreign policy, and U.S. Grand Strategy in the 21st  Century: The Case for Restraint (Routledge 2018), an edited volume (with Ben Friedman) that presents a cutting-edge critique of primacy and a comprehensive outline of the case for restraint in U.S. foreign policy.

Trevor has published articles in a range of academic journals and his shorter commentary on foreign affairs has appeared in a number of publications including the AtlanticWashington PostPhiladelphia InquirerForeign PolicyDetroit NewsHuffington PostWar on the Rocks, and the National Interest.

Thrall is the co-host of the Power Problems podcast, a biweekly podcast which explores key questions in international security with guests from across the political spectrum.

Prior to working at George Mason Thrall taught at the University of Michigan-Dearborn where he directed the MPP and MPA programs. Thrall holds a PhD in political science from M.I.T.