From January to April 2006, O'Connor served as an associate deputy attorney general. In 2007, O'Connor served as Chief of Staff to United States Attorney General Alberto R. Gonzales.
From January to April 2006, O'Connor served as a senior official within the U.S. Department of Justice. In 2007, O'Connor assumed a key administrative role as Chief of Staff to U.S. Attorney General Alberto R. Gonzales.