Janet Napolitano is an American politician and attorney who served as the Secretary of the Department of Homeland Security from 2009 to 2013 under President Barack Obama. Before this role, she was the Governor of Arizona from 2003 to 2009, making her the first woman to hold that position in the state. Napolitano was born on November 29, 1957, in New York City. She earned her law degree from the University of Chicago and has held various positions in public service, including serving as the Attorney General of Arizona. She is known for her work on immigration and border security issues.