He was a law clerk for Judge Stephen F. Williams of the D.C. Circuit, clerked for U.S. Supreme Court Justice David Souter, and worked as a lawyer with Mayer, Brown & Platt in Chicago before joining the Penn Law faculty in 2002.
He was a law clerk for Judge Stephen F. Williams of the D.C. Circuit, clerked for U.S. Supreme Court Justice David Souter. Roosevelt worked as a lawyer with Mayer, Brown & Platt in Chicago from 2000 to 2002 before joining the Penn Law faculty in 2002.