Steven Gow Calabresi (born March 1, 1958) is an American legal scholar, professor, and co-founder of the Federalist Society for Law & Public Policy Studies. He graduated from Moses Brown School in Providence, Rhode Island, in 1976, earned a B.A. in History cum laude from Yale College in 1980, and a J.D. from Yale Law School in 1983, where he served as Note & Topics Editor of the Yale Law Journal. During law school, Calabresi co-founded the Yale chapter of the Federalist Society with Lee Liberman Otis and David McIntosh, one of the organization's original chapters. He is the nephew of Guido Calabresi, former Yale Law School dean and U.S. Court of Appeals judge. Calabresi clerked for Judge Ralph K. Winter Jr. on the Second Circuit, Judge Robert Bork on the D.C. Circuit, and Justice Antonin Scalia on the Supreme Court. From 1985 to 1990, Calabresi served in the Reagan and George H.W. Bush administrations, including as Special Assistant to Attorney General Edwin Meese III and deputy to Reagan Domestic Policy Chief T. Kenneth Cribb in the White House West Wing, where he also wrote campaign speeches for Vice President Dan Quayle. Since 1996, he has been a professor at Northwestern University Pritzker School of Law, holding the Clayton J. and Henry R. Barber Professorship, and has been a visiting professor at Yale Law School since 2013. He serves as co-chairman (or chairman in some sources) of the Federalist Society's Board of Directors, a position held since around 1986. Calabresi has authored or co-authored numerous books, including 'The Unitary Executive' with Christopher S. Yoo and works on judicial review and constitutional law, and over 70 law review articles. A prominent figure in conservative legal circles, Calabresi advocates for the unitary executive theory and originalism. He has supported legally recognizing same-sex marriages and criticized Donald Trump's actions, calling attempts to delay the 2020 election 'fascistic' in a New York Times op-ed and arguing with Norman Eisen that Trump should be convicted post-January 6. He has also argued the Mueller probe was unlawful with Gary Lawson and filed briefs supporting Trump in other contexts alongside Edwin Meese and Michael Mukasey.