Greve is a professor at George Mason University School of Law and a visiting scholar at the American Enterprise Institute. Prior to his position at George Mason University, Professor Greve was the John G. Searle Scholar at AEI. He has taught at a number of universities, including Cornell and Johns Hopkins, and has been a visiting professor at Boston College since 2004. Greve was a co-founder of the Center for Individual Rights, a public interest law firm, which he directed from 1989 to 2000. He has written widely on constitutional and administrative law, federalism, environmental policy, and civil rights. His publications include numerous law review articles and books, including most recently, The Upside-Down Constitution (Harvard University Press, 2012). Greve holds a Ph.D. and M.A. in Government from Cornell University, and completed his undergraduate studies at the University of Hamburg. He is a frequent contributor to the Liberty Law Blog.