On Marc Hearron’s first day as Sen. Dianne Feinstein’s lead counsel for judicial nominations, President Donald Trump nominated Brett Kavanaugh to the U.S. Supreme Court. Hearron joined the staff of the California Democrat and ranking member of the Senate Judiciary Committee after 11 years at Morrison & Foerster, where he was a partner in the firm’s Supreme Court and appellate practice. Hearron’s law firm work bore little resemblance to managing a nominations team involved in the most contentious Supreme Court confirmation since the Clarence Thomas-Anita Hill hearings. We spoke with Hearron about his role on Feinstein’s team and what he learned. The interview that follows was edited for length and clarity.

How did you come to the Senate position?