I am the Newhouse Professor of Civic Studies in Political Science and Tisch College at Tufts University. I am also co-Principal Investigator for the Cooperative Congressional Election Study and a faculty associate at the Institute for Quantitative Social Science at Harvard University. My research focuses on public opinion, campaigns and elections, and political parties. I am co-author of the books Hometown Inequality: Race, Class, and Representation in American Local Politics and Campaign Finance and Political Polarization: When Purists Prevail. My research has appeared in over forty journal articles and has received  millions of dollars of in external funding.