 She then pursued further graduate studies at Harvard University, earning an M.A.in government in 1998 and a Ph.D. in government in 2001.From 1997 to 2007 she served on the faculty of the University of Chicago, rising through the academic ranks to become a professor of both classics and political science, as well as a member of the Committee on Social Thought, and she served as Dean of the Division of the Humanities from 2004 to 2007.