Paul Weiss’ ex-pro bono chief Steve Banks, who left after the firm’s deal with President Donald Trump, will lead the New York City Law Department, Mayor-elect Zohran Mamdani said, putting a longtime liberal advocate in the city government’s top legal position.

Mamdani announced on Tuesday that Banks will serve in the role, called corporation counsel.

Banks joined Paul Weiss Rifkind Wharton & Garrison in 2022 after serving for nearly eight years as commissioner of the New York City Department of Social Services under New York City Mayor Bill de Blasio. Before that, Banks worked for three decades at the Legal …