Ethan Porter is Assistant Professor in the School of Media and Public Affairs at George Washington University, where he also holds a courtesy appointment in the Political Science Department. He received his PhD in Political Science from the University of Chicago. His research has appeared or is forthcoming in Proceedings of the National Academy of Sciences, Journal of Politics, British Journal of Political Science, Political Behavior, Political Communication, and other journals. He has also written for The New York Times, The Washington Post and other popular publications, and has received grant support from the National Science Foundation and the Omidyar Network.