The presidency of George W. Bush began at noon EST on January 20, 2001, when George W. Bush was inaugurated as the 43rd president of the United States, and ended on January 20, 2009. Bush, a Republican, took office following a very close victory over Democratic incumbent vice president Al Gore in the 2000 presidential election. Four years later, in the 2004 election, he defeated Democrat John Kerry to win re-election. Bush, the 43rd president, is the eldest son of the 41st president, George H. W. Bush. He was succeeded by Democrat Barack Obama, who won the 2008 presidential election.