Matthew A. Baum is the Marvin Kalb Professor of Global Communications and Professor of Public Policy at the John F. Kennedy School of Government and Department of Government at Harvard University. His research focuses on the domestic sources of foreign policy and the role of the mass media and public opinion in contemporary American politics and foreign policy. His research has been published in over a dozen scholarly journals, such as the American Political Science Review, American Journal of Political Science, Journal of Politics, and International Organization. He has also published numerous op-ed articles in newspapers, blogs, and news magazines. He is author of Soft News Goes to War: Public Opinion and American Foreign Policy in the New Media Age (Princeton, 2003) and co-author of War Stories: The Causes and Consequences of Public Views of War (Princeton, 2010) and War and Democratic Constrain: How the Public Influences Foreign Policy (Princeton, 2015). Before coming to Harvard, Baum was an associate professor of political science and communication studies at UCLA.