U.S. Supreme Court building in Washington, D.C. (Photo: Diego M. Radzinschi/ALM) U.S. Supreme Court building in Washington, D.C. Photo: Diego M. Radzinschi/ALM Plessy v. Ferguson Plessy Brown v. Board of Education of Topeka, Kansas Roe v. Wade Casey v. Planned Parenthood Roe Roe Barry P. McDonald is a professor of constitutional law at Pepperdine University in Malibu, California, and served as a law clerk to the late Chief Justice William H. Rehnquist.