Jeffrey Bossert Clark

Chief of Litigation and Director of Strategy

Jeffrey Bossert Clark brings decades of government and private-sector experience at the highest levels of complexity to his role as NCLA’s Chief of Litigation and Director of Strategy.  Jeff was Senate-confirmed, with bipartisan support, in 2018 as the 35th Assistant Attorney General of the Environment and Natural Resources Division of the U.S. Department of Justice (DOJ), followed by dual-hat service as the Acting Assistant Attorney General of DOJ’s Civil Division in 2020. In his most recent stint in government, he addressed China’s National Prosecutor’s College in Zhengzhou, Henan Province in 2019, making the case to officials there for the separation of powers and federalism as aids even in solving environmental problems.  Previously, he was a partner at Kirkland & Ellis, where he focused on appellate litigation, administrative law, and environmental law. While there, he represented pro bono the Miami relatives of Cuban national Elian Gonzalez in the international controversy over the boy’s custody and immigration before the Eleventh Circuit and U.S. Supreme Court in 2000.

Jeff is a former member of the Governing Council of the ABA’s Administrative Law Section and a former adjunct law professor at the now-Antonin Scalia Law School. He has argued in all of the U.S. Circuit Courts of Appeals, has been named a Super Lawyer, to the Legal Who’s Who, to the Nation’s One Percent, and is certified by Martindale-Hubbell as “A.V. Preeminent.” He clerked for the Hon. Danny J. Boggs on the U.S. Court of Appeals for the Sixth Circuit.

Jeff earned his A.B. from Harvard University, a master’s degree from the now-Joseph R. Biden, Jr. School of Public Policy & Administration at the University of Delaware, and a J.D. from the Georgetown University Law Center.