In his first major appointment since voters elected him California’s next governor, Gavin Newsom on Friday named Boies Schiller Flexner partner Ann O’Leary his chief of staff.

O’Leary previously held positions as a senior economic policy fellow at the Center for American Progress, a progressive think-tank, and as a lecturer in social policy and health law at the University of California, Berkeley, School of Law. She also served on the White House Domestic Policy Council under President Bill Clinton and worked as a deputy city attorney in San Francisco.