Bill Clinton served as the forty-second President of the United States from 1993 to 2001. George W Bush was his successor and George H W Bush his predecessor. Since leaving office, Clinton has been heavily involved in public speaking and humanitarian work. He has remained active in political matters, campaigning for Democratic presidential candidates, notably his wife in the 2008 presidential election. Hilary Clinton, is also a powerful force in world politics; she was the United States Senator for New York from 2001-9 and the 67th United States Secretary of State under Barack Obama.