It’s been just over a year since Kannon Shanmugam shook up the appellate bar by jumping from Williams & Connolly to Paul Weiss, where he both chairs the firm’s Supreme Court and appellate practice and manages the 85-lawyer D.C. office.

Not that he was actually in Washington to celebrate. Instead, Shanmugam in the last two days has criss-crossed the country to deliver appellate arguments in two big cases on opposite coasts.