Sullivan & Cromwell, moving aggressively in the market for former U.S. Supreme Court clerks, has added three more to its litigation group, and Supreme Court and appellate practice, led by veteran advocate Jeffrey Wall.

Just last month, the law firm and Wall, who was acting U.S. solicitor general and principal deputy solicitor general in the Trump administration, brought on board Morgan Ratner, a former assistant to the solicitor general who clerked for Chief Justice John Roberts Jr. Ratner, a Harvard Law graduate, has argued eight Supreme Court cases and will be special counsel in the Supreme Court practice. Wall, who was a partner in the firm before going into government, has argued 30 cases.