Akhil Reed Amar is Sterling Professor of Law and Political Science at Yale University, where he teaches constitutional law at both Yale College and Yale Law School. He is the author of several books, including The Constitution and Criminal Procedure: First Principles (Yale Univ. Press, 1997), The Bill of Rights: Creation and Reconstruction (Yale Univ. Press, 1998), America’s Constitution: A Biography (Random House, 2005), and most recently, America’s Unwritten Constitution: The Precedents and Principles We Live By (Basic Books, 2012).