Professor Walker’s research and teaching focus on intersections between constitutional law, criminal law, and legal history. His articles have appeared or are forthcoming in the Columbia Law Review, the Washington University Law Review, the Wisconsin Law Review, the Hastings Law Journal, and the Florida State University Law Review. He won the 2010 Law & Society Association Article Prize, the 2009 AALS Criminal Justice Section Junior Scholar Award, and was voted Teacher of the Year in 2011 and 2009. His book, The Ghost of Jim Crow: How Southern Moderates Used Brown v. Board of Education to Stall Civil Rights was published by the Oxford University Press in 2009.