ANN ARBOR—The University of Michigan has experts to discuss what former Sen. Rick Santorum’s departure from the presidential race means for the remaining Republican candidates.

They include:

Michael Heaney, an assistant professor of organizational studies and political science, examines the organizational dimensions of American politics. His research focuses on the role of intermediary institutions—especially interest groups, political parties, and social movements—in shaping the political process and policy outcomes. He can be contacted at (202) 236-3369 or mheaney@umich.edu

Vincent Hutchings, associate professor, ISR Center for Political Studies, is an expert in elections, public opinion, voting behavior and African American politics. He can be reached at (734) 764-6591 or vincenth@umich.edu

Arthur Lupia, political science professor and senior research scientist, ISR Center for Political Studies, deals with questions regarding voting and elections, civic competence, parliamentary governance and the role of the media and the Internet in politics. He can be reached at (734) 647-7549 or lupia@isr.umich.edu

Michael Traugott, professor of communication studies and senior research scientist, ISR Center for Political Studies, is an authority on political communication, public opinion, media polling and campaign surveys. He can be reached at (734) 647-0421 or mtrau@umich.edu

Related Links:

• More U-M experts on the 2012 presidential election