Tweets of Past United States Presidents Tweets of President Trump and select world leaders are also available. Barack Obama 44th President 2009 - 2017 George W. Bush 43rd President 2001 - 2009 Bill Clinton 42nd President 1993 - 2001 George H.W. Bush 41st President 1989 - 1993 Ronald Reagan 40th President 1981 - 1989 Jimmy Carter 39th President 1977 - 1981