John H. Aldrich is the Pfizer-Pratt University Professor of Political Science at Duke University. His research specialties include American politics and political parties, formal theory, and metholodogy. He is a Fellow of the American Academy of Arts and Sciences and has received grants from both the National Science Foundation and the National Endowment for the Humanities.
Aldrich is the author of "Why Parties?: The Origin and Transformation of Political Parties in America" (1995) and the coauthor of "Change and Continuity in the 2004 and 2006 Elections" (2007). He is also the coauthor of a new installment in the series, "Change and Continuity in the 2008 Election," due out in December 2009.