1. Professor in the Department of Political Science and research professor at the Center for Political Studies at the University of Michigan, Ann Arbor, MI, USA
2. Assistant professor in the School of Politics and Global Studies, Arizona State University, Tempe, AZ, USA
3. Works at the Citizens Technology Lab at Cornell University, Ithaca, NY, USA
4. Associate professor in the Department of Electrical and Computer Engineering at the University of Illinois at Urbana-Champaign, Urbana, IL, USA