Mr. Lehman currently serves as Chief of Staff for Senator Thom Tillis. Prior to that, he served as the Chief Counsel for Nominations and Senior Counsel for the then-Chairman of the Senate Judiciary Committee, Senator Grassley, concentrating primarily on judicial and executive nominations. During his time with Senator Grassley, in addition to handling nominations, Mr. Lehman’s portfolio included a number of legislative issues, including tort reform related matters.  Before joining Senator Grassley's staff in 2011, Mr. Lehman served as a Counsel on the Committee for the former Ranking Member, Senator Sessions.

Mr. Lehman is a 2000 graduate of the University of Pennsylvania. He attended Georgetown University Law Center while working for then-Chairman of the Judiciary Committee, Senator Hatch. Following law school, he clerked for then-Chief Judge of the D.C. District Court, the Honorable Thomas F. Hogan.  Following his clerkship, Mr. Lehman practiced law at Akin Gump Strauss Hauer and Feld, before returning to the Senate in 2009. Mr. Lehman resides in Maryland with his wife, Amy, and their three children.