The 1992 presidential campaign of George H. W. Bush was an unsuccessful re-election campaign for 1992 United States presidential election by incumbent president George H. W. Bush, who had taken office on January 20, 1989. Bush and incumbent vice president Dan Quayle were defeated by Democratic presidential nominee Bill Clinton and vice presidential nominee Al Gore. Bush, a Republican president and former vice president under Ronald Reagan, launched his presidential bid on October 11, 1991 and secured nomination for his re-election on August 20, 1992. He was challenged in the Republican primaries by former White House Communications Director Pat Buchanan, who received less than one percent of the delegates in the Convention.