Areas of specialization: race and labor, intellectual history of race, and American social movements. He is the author of Race Relations in the United States, 1980-2000 for Greenwood Press, (2008); The Yankee International: Marxism and the American Reform Tradition, 1848-1876 (University of North Carolina Press, 1998) and Banksters, Bosses and Smart Money: A Social History of the Great Toledo Bank Crash of 1931 (Ohio State University Press, 2005). His work has appeared in many journals including Labor History, Journal of Blacks in Higher Education, Race Traitor, Labor: Studies in Working Class History of the Americas, Journal of the Gilded Age and Progressive Era and Timeline. He is currently working on a study of scientific ideas of race in the Jeffersonian era.

Ph.D. in History, University of Wisconsin-Madison