Costas Panagopoulos is Professor of Political Science and interim Chair in the Department of Political Science in the College of Social Sciences and Humanities at Northeastern University, where he was previously director of big data and quantitative initiatives. A leading expert on campaigns and elections, voting behavior, political psychology, campaign finance, and experimental research, Panagopoulos has been part of the Decision Desk team at NBC News since the 2006 election cycle.He is an editor of American Politics Research. He is also author, co-author or editor of several books, including Political Campaigns: Concepts, Context, and Consequences (Oxford) and A Citizen's Guide to US Elections (with Aaron Weinschenk).