Andrew Koppelman is John Paul Stevens Professor of Law and Professor of Political Science at Northwestern University. His scholarship focuses on issues at the intersection of law and political philosophy, including gay rights, antidiscrimination law, religious liberty, obscenity law, abortion, federalism, the regulation of recreational drugs, the theory of democracy, and the meaning of neutrality as a political ideal. He is the author of A Right to Discriminate? How the Case of Boy Scouts of America v. James Dale Warped the Law of Free Association (with Tobias Barrington Wolff, Yale University Press, 2009), Same Sex, Different States: When Same-Sex Marriages Cross State Lines (Yale University Press, 2006), The Gay Rights Question in Contemporary American Law (University of Chicago Press, 2002), Antidiscrimination Law and Social Equality (Yale University Press, 1996), which won a Myers Center Award, and more than 50 articles in books and scholarly journals. He is also an occasional contributor to the Balkinization blog.