Hillary Clinton's tenure as Secretary of State Hillary Clinton's tenure as Secretary of State Hillary Clinton served as the 67th United States Secretary of State, under President Barack Obama, from 2009 to 2013, overseeing the department that conducted the Foreign policy of Barack Obama. She was preceded in office by Condoleezza Rice, and succeeded by John Kerry. She is also the only former First Lady of the United States to become a member of the United States Cabinet. Within a week after the November 4, 2008, presidential election, President-elect Obama and Clinton discussed over telephone the possibility of her serving as U.S. Secretary of State in his
Under Secretary of State for Arms Control and International Security Affairs Under Secretary of State for Arms Control and International Security Affairs The Under Secretary for Arms Control and International Security Affairs (T) is a position within the U.S. Department of State that serves as Senior Adviser to the President and the Secretary of State for Arms Control, Nonproliferation, and Disarmament. In this capacity, the Under Secretary (U/S) attends and participates, at the direction of the President, in National Security Council (NSC) and subordinate meetings pertaining to arms control, nonproliferation, and disarmament and has the right to communicate, through the Secretary of State, with the President and members of the NSC