1985 – Thomas O. Barnett received his B.A.from Yale University where he graduated summa cum laude.
1986 – He received a Master of Science degree in economics from the London School of Economics while a
Fulbright Scholar to the United Kingdom.
1989 – Barnett was graduated magna cum laude from Harvard Law School.
1989-1990 – Barnett clerked for The Hon. Harrison Winter of the U.S. Court of Appeals for the Fourth Circuit.
2004 – Thomas O. Barnett was served as the Division’s Deputy Assistant Attorney General for civil enforcement.
2005 – Barnett became the Antitrust Division’s Acting Assistant Attorney General.
2006 – Thomas O. Barnett was the Assistant Attorney General of the Antitrust Division, United States Department of Justice, on 10th of February.