The Council on Foreign Relations' David Rockefeller Studies Program—CFR's "think tank"—is home to more than seventy full-time, adjunct, and visiting scholars and practitioners (called fellows). Their expertise covers the world's major regions as well as the critical issues shaping today's global agenda.


Carla Anne Robbins

Adjunct Senior Fellow

Award-winning journalist and national security writer. Former deputy editorial page editor for the New York Times and chief diplomatic correspondent for the Wall Street Journal. Directing a roundtable series focused on national security in an age of austerity.

John D. Rockefeller IV

Distinguished Fellow

Former U.S. senator from West Virginia with more than fifty years in public service, including thirty in the Senate. Served as Chairman of the Senate Select Committee on Intelligence from 2007 to 2009 and Chairman of the Committee on Commerce, Science and Transportation from 2009 to 2015. 

Kenneth S. Rogoff

Senior Fellow for Economics

Kenneth Rogoff is a senior fellow for economics at the Council on Foreign Relations and currently Thomas D. Cabot Professor of Public Policy and Professor of Economics at Harvard University. From 2001–2003, Rogoff served as chief economist and director of research at the International Monetary Fund. 


Elizabeth N. Saunders

Visiting Fellow

Currently an assistant professor of political science and international affairs at the George Washington University. Her research and teaching interests focus on international security and U.S. foreign policy, including the presidency and foreign policy, and the politics of using force. 

Adam Segal

Ira A. Lipman Chair in Emerging Technologies and National Security and Director of the Digital and Cyberspace Policy Program

Adam Segal is the Ira A. Lipman chair in emerging technologies and national security and director of the Digital and Cyberspace Policy Program at the Council on Foreign Relations (CFR). An expert on security issues, technology development, and Chinese domestic and foreign policy, Dr. Segal was the project director for the CFR-sponsored Independent Task Force report Defending an Open, Global, Secure, and Resilient Internet. His book Advantage: How American Innovation Can Overcome the Asian Challenge (W.W. Norton, 2011) looks at the technological rise of Asia. His work has appeared in the Financial Times, The EconomistForeign PolicyThe Wall Street Journal, and Foreign Affairs, among others. He currently writes for the blog, “Net Politics.”

Stephen Sestanovich

George F. Kennan Senior Fellow for Russian and Eurasian Studies

Former U.S. ambassador-at-large for policy toward the states of the former Soviet Union. Author of Maximalist: America in the World from Truman to Obama (Knopf, February 2014). Professor at Columbia's School of International and Public Affairs.

Brad W. Setser

Senior Fellow and Acting Director of the Maurice R. Greenberg Center for Geoeconomic Studies

Applied international economist with experience at the U.S. Treasury and the International Monetary Fund. Currently examining central bank reserve growth, sovereign wealth funds, and the political implications of emerging market financing of the United States. He blogs at "Follow the Money."

Varun Sivaram

Douglas Dillon Fellow and Acting Director of the Program on Energy Security and Climate Change

Former senior advisor for energy and water policy to the mayor of Los Angeles, energy consultant with McKinsey, and physicist developing solar technology. Currently researching the impact of disruptive technology on U.S. energy and security.

Matthew J. Slaughter

Adjunct Senior Fellow for Business and Globalization

Former member of the Council of Economic Advisers. Coauthor of the Council Special Report, Global FDI Policy. Paul Danos Dean of the Tuck School and the Earl C. Daum 1924 Professor of International Business at the Tuck School of Business at Dartmouth College.

Scott A. Snyder

Senior Fellow for Korea Studies and Director of the Program on U.S.-Korea Policy

Former senior associate at the Asia Foundation and Pacific Forum, Center for Strategic & International Studies. Founder of the Center for U.S.-Korea Policy. Coeditor of North Korea in Transition: Politics, Economy, and Society, editor of CFR's Global Korea: South Korea's Contributions to International Security, editor of The U.S.-South Korea Alliance: Meeting New Security Challenges, and co-author of The Japan-South Korea Identity Clash: East Asian Security and the United States.

A. Michael Spence

Distinguished Visiting Fellow

Economist and recipient of the Nobel Prize in economics in 2001. Author of The Next Convergence. Chairman of the Commission on Growth and Development.

Benn Steil

Senior Fellow and Director of International Economics

Award-winning writer, and editor of the scholarly journal International Finance. His most recent book, The Battle of Bretton Woods: John Maynard Keynes, Harry Dexter White, and the Making of a New World Order, was called "a triumph of economic and diplomatic history" by the Financial Times.


Matthew M. Taylor

Adjunct Senior Fellow for Latin America Studies

Associate Professor at the School of International Service, American University. Currently writing a book on the political economy of democratic Brazil.

Jonathan Tepperman

Managing Editor, Foreign Affairs

Former deputy editor of Newsweek International and director at EurasiaGroup.


Colonel Rick Ullian

Military Fellow, U.S. Army

Colonel Rick Ullian, U.S. Army, is an artillerymen and former brigade commander in Europe. His previous assignments include special assistant to the vice chief of staff of the Army. He has deployed numerous times in support of military operations in Somalia, Haiti, Iraq, and Afghanistan.

Colonel Ullian holds a BA from the University of California, Los Angeles, an MA from the Naval Command and Staff College, and served as an Army War College fellow at the Institute of World Politics.


Rachel B. Vogelstein

Senior Fellow and Director of the Women and Foreign Policy Program

Former advisor to U.S. Secretary of State Hillary Rodham Clinton on global women's issues. Currently an adjunct professor of women's human rights at Georgetown University. Research focuses on the relationship between women's advancement and prosperity, stability, and security.


Matthew C. Waxman

Adjunct Senior Fellow for Law and Foreign Policy

Former State Department and Defense Department senior official and National Security Council staff member. Professor of international law and national security law at Columbia Law School. Currently working on CFR's Cyberconflict and Cybersecurity Initiative.