Janet Napolitano served as the Secretary for Homeland Security from 2009-2013. She was the first woman to serve in this role. Prior to this role she served as the Governor of Arizona from 2003 to 2009; from 1999 to 2002 she served as the Attorney General of Arizona and the first woman to serve in that role. In 1993 she was appointed US Attorney for the Distrcit of Arizona by President Clinton. In 2000 she spoke at the Democratic National Convention. In 2009 she received the Council on Ligiation Management's Professionalism Award, which recognizes an individual who leads by example and exhibits the highest standard of their profession.
Throughout her tenure at the Department of Homeland Security, she was criticized for statements about, and sued for discrimination against, men. Through this, she led the department successfully, including forging new partnerships with international allies and information sharing between federal, state, and local law enforcement organizations, while keeping the Homeland safe. For more information see here.