Jamieson Lee Greer

Jamieson Greer is an American lawyer and government official serving as the 20th United States Trade Representative since February 27, 2025. He served as Chief of Staff to USTR Robert Lighthizer during Trump's first term (2017-2021) and was a key architect of the USMCA and Phase One China trade deal. He was confirmed on a 56-43 Senate vote.