Governor Janet Napolitano was selected by President Barack Obama to serve as the Secretary of Homeland Security in the United States Cabinet. Since Arizona has no lieutenant governor, the Secretary of State stands first in the line of succession if he or she holds that post as a result of an election. Despite her earlier quarrels with the line of succession while serving in the State Senate, Brewer was sworn in as governor after Napolitano resigned from her position on January 21, 2009. She became Arizona's fourth female governor and its third consecutive female governor.