A counsel in the Litigation Department, Sam Kleiner represents clients in high-stakes litigation, government and internal investigations, and regulatory proceedings.

Prior to joining Paul, Weiss, he served as a senior advisor to the General Counsel and the Under Secretary for Terrorism and Financial Intelligence at the U.S. Department of the Treasury, where he advised on sanctions, anti-money laundering, CFIUS and litigation matters. Secretary Janet Yellen awarded him the Treasury Department’s Exceptional Service Medal for his service. He also previously served as a senior deputy associate counsel at the White House and as a law clerk for Judge Gerard Lynch of the U.S. Court of Appeals for the Second Circuit.

Sam’s writing has appeared in Just Security and Law360, and he is the author of The Flying Tigers: the Untold Story of the American Pilots Who Waged a Secret War Against Japan, published by Viking in 2018.