Ambassador (ret.) Marie L. Yovanovitch is a Senior Fellow in the Russia and Eurasia Program at the Carnegie Endowment for International Peace, after serving three years as the U.S. Ambassador to Ukraine (2016-2019). She previously served as Ambassador to the Republic of Armenia (2008-2011) and the Kyrgyz Republic (2005-2008). From 2012-2013, Ambassador Yovanovitch was the Principal Deputy Assistant Secretary of State for the Bureau of European and Eurasian Affairs, where she was responsible for policy on European and global security issues. She also served as the Senior Advisor to the Under Secretary of State for Political Affairs from 2004-2005. She retired from the Department of State as a Career Minister in January 2020.

A graduate of Princeton University with a master’s degree from the National Defense University, Ambassador Yovanovitch received numerous Presidential and State Department awards, including the Secretary’s Diplomacy in Human Rights Award.

Kim Lane Scheppele is the Laurance S. Rockefeller Professor of Sociology and International Affairs in the Princeton School of Public and International Affairs and the University Center for Human Values at Princeton University. Scheppele's work focuses on the intersection of constitutional and international law, particularly in constitutional systems under stress.