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Thursday, April 23, 2026

Former SDNY Assistant U.S. Attorney Stephen Cha-Kim Joins ... - Arnold & Porter

New York, NY, July 10, 2023 — Arnold & Porter announced today that Stephen Cha-Kim, former Assistant U.S. Attorney in the United States Attorney’s Office for the Southern District of New York, has joined the firm’s Complex Litigation practice as a partner, resident in New York.

Jim Herschlein, co-chair of Arnold & Porter’s Litigation group, said: “Stephen brings an impressive record of experience in the U.S. Attorney’s Office. His versatile set of skills will further enhance our Complex Litigation team and adds greater depth to our growing roster of SDNY alumni.”

Cha-Kim brings eight years of experience in the U.S. Attorney’s Office, where he represented the federal government before U.S. District, Bankruptcy and Circuit Courts. During his time at the SDNY, Cha-Kim oversaw all aspects of litigation, trying cases, arguing appeals, and conducting civil investigations. He handled a broad range of matters including constitutional claims; challenges brought under the Administrative Procedure Act; Title VII and ADEA litigation; intellectual property and commercial litigation; international disputes; and investigations for violations of the federal False Claims Act and Clean Air Act.

In joining the firm, Cha-Kim said: “Arnold & Porter’s leading Complex Litigation practice has an outstanding roster of former prosecutors and talented litigators who represent global clients in high-profile matters. I look forward to joining this premier team to help clients find...



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