Dunn Series Lecture: Caitlin Halligan

Caitlin J. Halligan is a litigation partner in the New York office of Gibson, Dunn & Crutcher and Co- Chair of Gibson Dunn’s Appellate and Constitutional Law Practice Group. She has argued six cases in the U.S. Supreme Court. Ms. Halligan has argued dozens of cases before the federal appellate courts, the New York Court of Appeals, and New York’s intermediate appellate courts, and participated in numerous litigations at the trial level as well. Her lecture will cover the role of state attorneys general in filing suit against the federal government, and how this phenomenon has flipped with the change in administrations. 

Prior to joining Gibson Dunn, Ms. Halligan served as General Counsel to the New York County District Attorney’s Office. From 2001 to 2007, Ms. Halligan served as Solicitor General for the State of New York, where she represented the state in federal and state appellate courts and supervised a team of 45 lawyers. Prior to serving as New York Solicitor General, she was First Deputy Solicitor General. From 1999 to 2000, Ms. Halligan was the first Chief of the New York Attorney General’s Internet Bureau, where she developed law enforcement and policy initiatives regarding online consumer fraud, privacy, online securities trading and other Internet-related issues. Ms. Halligan was a law clerk for U.S. Supreme Court Justice Stephen Breyer and Judge Patricia Wald of the U.S. Court of Appeals for the D.C. Circuit. She graduated magna cum laude in 1995 from the Georgetown University Law Center, where she was Order of the Coif, served as Managing Editor of the Georgetown Law Review and participated as an Olin Fellow in Law and Economics. Prior to attending law school, she served as a legislative aide for U.S. Representative William Alexander of Arkansas.