David Nickerson is an Associate Professor in the Department of Political Science at Temple University. His research focuses substantively on how campaigns mobilise supporters and the effectiveness of these tactics. To gain reliable estimates of campaign tactics, he also thinks about research design and data collection. He teaches courses that introduce students to research design and the basics of quantitative analysis. In 2012, he served as the Director of Experiments for the Analytics Department of President Obama’s re-election campaign. He continues to collaborate with governmental and non-governmental groups to answer practical questions about engaging constituents.