James Oakes is Distinguished Professor of History at the CUNY Grad Center.  Among his many books are three pathbreaking works: The Ruling Race: A History of American Slaveholders (1982); The Radical and the Republican: Frederick Douglass, Abraham Lincoln, and the Triumph of Antislavery Politics (2008); and Freedom National: The Destruction of Slavery in the US, 1861-1865 (2012).