Stephen Wertheim is a senior fellow in the American Statecraft Program at the Carnegie Endowment for International Peace, where he analyzes U.S. foreign policy and diplomacy as a historian. His book, Tomorrow, the World: The Birth of U.S. Global Supremacy, a Foreign Affairs book of the year, examines how the U.S. pursued global military dominance as a long-term strategy. His scholarly work spans U.S. foreign policy from the late nineteenth century to today.

Wertheim is a prominent commentator on current events, named one of “the world’s 50 top thinkers for the Covid-19 age” by Prospect magazine. His essays appear in outlets like The Atlantic, Foreign Affairs, The New York Times, and The Washington Post, and he has been interviewed on C-SPAN, NPR, and PBS. Before Carnegie, he co-founded the Quincy Institute for Responsible Statecraft, serving as its director of grand strategy.

Wertheim has held academic positions at Columbia, Yale, Princeton, and the University of London, and postdoctoral fellowships at Princeton and Cambridge. He earned a PhD in history from Columbia University in 2015 and an AB summa cum laude from Harvard University in 2007.