A top U.S. Justice Department official who departed his post in November is joining Freshfields Bruckhaus Deringer in Washington, D.C.

Eric Mahr was a partner at Wilmer Cutler Pickering Hale and Dorr for more than 15 years before joining the DOJ’s antitrust division as director of litigation in 2015. He left the government position in November 2017 as the trial over his department’s lawsuit to block AT&T’s purchase of Time Warner fast approached.