Hello, and welcome to my home page. At the top of this page, you can find links to my Vitae, reprints of my published articles, some working papers, and descriptions of ongoing research. I update this page occasionally -- and hope to do so more often -- so please check back soon. 

I am the Mitsui Professor of Political Science at MIT and the Director of the MIT Political Experiments Research Lab. I specialize in the fields of political behavior and public opinion. I am primarily concerned with questions of representation and the relationship between the mass public and political leaders. I have also studied public opinion and foreign policy, the continuing power of group-based stereotypes, the effect of voting reforms, the power of the media, and survey research methods. For the last decade, I have been studying political rumors and misinformation