@inbook {4598, title = {Polarization, Public Opinion and the Presidency: The Obama and Anti-Obama Coalitions}, booktitle = {The Barack Obama Presidency: First Appraisals}, year = {2011}, pages = {94-121}, publisher = {CQ Press}, organization = {CQ Press}, address = {Washington D. C.}, author = {Gary Jacobson}, editor = {Bert A. Rockman and Andrew Rudalevige} }