The 900-lawyer firm celebrates a homecoming this week as Holder, the nation’s first black attorney general, rejoins the firm as a white-collar partner. Covington plans to announce the news Monday, and his official start date will be in September.

“This is home for me,” Holder said. Margaret Richardson, his former chief of staff, also is joining the firm as an of counsel.

Holder, 64, left the U.S. Department of Justice in April after serving for six years. Before that, he had been a partner at Covington from 2001 to January 2009.

Practice plans

Holder told The National Law Journal in an interview that he planned to work on a mix of projects at Covington, from pro bono and access-to-justice issues, to counseling former and new clients on strategy and litigation.

“I would describe my work as being kind of at the intersection of business, law, public policy, international relations,” Holder…