Gleeson was nominated by President Bill Clinton on July 22, 1994, to a seat vacated by Jack B. Weinstein. He was confirmed by the United States Senate on September 28, 1994, and received his commission the next day. He served until his resignation on March 9, 2016.[2]
In 2012, he approved a deferred prosecution agreement with HSBC which was widely criticized as being too lenient,[3] but he continued to monitor the agreement for years, in 2016 ordering reports by the bank's independent monitor to be publicly disclosed in the interest of transparency.[5] In his last days on the bench Judge Gleeson, instead of issuing a writ of audita querela,[6] created a new "federal certificate of rehabilitation" to help convicts find jobs.[7][8]
On May 11, 2020, Gleeson co-authored an op-ed concerning the Department of Justice's request to drop charges against former National Security AdvisorMichael Flynn; the op-ed pointed out that dismissal of charges was not automatic but would only be granted by leave of the court.[11] Two days later, Judge Emmet G. Sullivan appointed Gleeson to present arguments against the DOJ’s request to withdraw the case against Flynn and to determine if perjury charges should be brought against Flynn. In the role, Gleeson served as a "friend of the court."[12][13]
United States Sentencing Commission
On May 11, 2022, President Joe Biden announced his intent to nominate Gleeson to serve as a member of the United States Sentencing Commission, to replace the retiring Rachel Barkow.[14] On May 12, 2022, his nomination was sent to the Senate.[15] On June 8, 2022, a hearing on his nomination was held before the Senate Judiciary Committee.[16] On July 21, 2022, his nomination was reported out of committee by a voice vote, with 6 Republican senators voted “no” on record.[17] On August 4, 2022, the United States Senate confirmed his nomination by a voice vote.[18] On October 18, 2023, he was renominated by President Biden for an additional term.[19] On October 24, 2023, his renomination was sent to the Senate.[20] On April 18, 2024, his nomination was favorably reported out of committee by a 11–10 party-line vote.[21] His nomination is pending before the United States Senate.