 She went on to graduate from the Columbia University's Graduate School of Journalism in 2003.O'Leary began her career with ABC as a member of a team including Diane Sawyer, Charles Gibson, and Peter Jennings, which won a Peabody Award for reporting on the September 11th terrorist attacks.She worked for NPR from 2003 to 2006, before moving to Bloomberg TV, where she covered politics and economic policy.