Jeffrey Bossert Clark

  1. Ernest Knaebel
  2. Francis J. Kearful
  3. Frank K. Nebeker
  4. Leslie C. Garnett
  5. William D. Riter
  6. Ira K. Wells
  7. Bertice M. Parmenter
  8. Seth W. Richardson
  9. Harry W. Blair
  10. Carl McFarland
  11. Norman Littell
  12. David L. Bazelon
  13. Augustus "Gus" Vanech
  14. William Amory Underhill
  15. James M. McInerney
  16. Perry W. Morton
  17. Ramsey Clark
  18. Edwin L. Weisl, Jr.
  19. Clyde O. Martz
  20. Shiro Kashiwa
  21. Kent Frizzell
  22. Wallace H. Johnson
  23. Peter Taft
  24. James W. Moorman
  25. Carol Dinkins
  26. F. Henry “Hank” Habicht, II
  27. Roger J. Marzulla
  28. Richard B. Stewart
  29. Lois Jane Schiffer
  30. Thomas L. Sansonetti
  31. Sue Ellen Wooldridge
  32. Ronald J. Tenpas
  33. Ignacia S. Moreno
  34. John C. Cruden
  35. Jeffrey Bossert Clark
  36. Todd Kim

Jeffrey Bossert Clark (2018 - 2021)

Early History/Schooling:

Jeffrey Bossert Clark was born in Philadelphia, Pennsylvania on April 17, 1967. Mr. Clark is a graduate of Harvard University (A.B. in economics and history, 1989), the Biden School of Public Policy and Administration at the University of Delaware (M.A. in urban affairs and public policy, 1993), and the Georgetown University Law Center (J.D., 1995). Mr. Clark was a recipient in college of the Joseph, John, and Robert Kennedy Memorial Scholarship and the Teamsters Scholarship.

Tenure as AAG:

President Trump nominated Mr. Clark to be the Assistant Attorney General of the Environment and Natural Resources Division (ENRD) on June 7, 2017. He was confirmed by the U.S. Senate on October 11, 2018 and sworn into office on November 1, 2018. The President also directed that Mr. Clark serve as well as the Acting Assistant Attorney General for the Civil Division effective September 3, 2020. Mr. Clark resigned from his positions on January 14, 2021.


Mr. Clark entered Georgetown’s law school in 1992 where he earned honors as an articles editor of the Georgetown Law Journal, an Olin Law & Economics Fellow, and a member of the Order of the Coif. From 1995 to 1996, Mr. Clark clerked for Judge Boggs of the U.S. Court of Appeals of the Sixth Circuit. Mr. Clark then joined the law firm of Kirkland & Ellis as an associate from 1996-2001.

Mr. Clark went on to serve in ENRD from 2001-2005 as a Deputy Assistant Attorney General selected by Attorney General Ashcroft and Assistant Attorney General Tom Sansonetti. In that capacity, he supervised ENRD’s Appellate and Indian Resources Sections. In 2005, Mr. Clark returned to Kirkland & Ellis LLP as a partner, where he litigated until his return to ENRD in 2018. For a decade, he served as an Adjunct Law Professor at the Scalia Law School, teaching an Environmental Law class and a Law, Science, and Technology class.

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Jeffrey B. Clark


Updated March 3, 2023

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