The University of Chicago Law School has issued a statement acknowledging that Senator Barack Obama can also claim the title of "Professor" for his service as a Senior Lecturer from 1992 until his election to the U. S. Senate in 2004. Although not full-time or tenure-track,
Senior Lecturers are considered to be members of the Law School faculty and... have high-demand careers in politics or public service, which prevent full-time teaching. Several times during his 12 years as a professor in the Law School, Obama was invited to join the faculty in a full-time tenure-track position, but he declined.
Campaign staffers working on behalf of Senator Hillary Rodham Clinton had questioned Senator Obama's claim to have worked as a professor at the University of Chicago.