The Office of the Solicitor General (OSG) presents oral arguments on behalf of the federal government in almost all cases before the Supreme Court. There are a few outliers. The Attorney General on occasion has argued one case during his or her tenure. And in rare cases, an attorney from an agency like the Federal Trade Commission will argue before the Court.
The Solicitor General (SG), who is Senate-confirmed, leads the Office. When the SG position is vacant, there will be an Acting SG. Below the SG is the Principal Deputy SG (PDSG), also known as the "political" deputy. Traditionally, OSG has traditionally had four Deputy Solicitor Generals (DSGs), including the PDSG. Currently there are five total deputies. The rest of the office includes Assistants to the Solicitor General (ASGs).
During the October Term 2023 (OT 2023), OSG argued a total of 53 cases. SG Elizabeth Prelogar argued ten cases and PDSG Brian Fletcher argued three cases. Four DSGs argued cases: Malcolm Stewart (3), Edwin Kneedler (2), Eric Feigin (2), and Curtis Gannon (2). The remaining 31 OSG cases were argued by the 15 ASGs.