WASHINGTON, : Democratic presidential candidate and US Vice President Al Gore addresses the nation on television, 27 November 2000, from his residence in Washington, DC. Gore called for a "complete count" of all votes cast for president in the state of Florida and decried what he said were efforts to stall the process of tallying ballots. AFP PHOTO/Luke FRAZZA (Photo credit should read LUKE FRAZZA/AFP via Getty Images)
US Vice President Al Gore poses for photographers following his concession speech 13 December, 2000 in his office in the Old Executive Office Building in Washington, DC. Gore conceded that Texas Governor George W. Bush had won the presidential election. AFP PHOTO Luke FRAZZA (Photo credit should read LUKE FRAZZA/AFP via Getty Images)
LITTLE ROCK, UNITED STATES: U.S. Democratic presidential candidate Governor Bill Clinton (L) waves to the crowd with U.S. Senator Albert Gore of Tennessee 09 July 1992 after announcing Gore as his vice-presidential nominee, Little Rock, Arkansas. The announcement came during a ceremony at the governor's mansion. (Photo credit should read CHRIS WILKINS/AFP via Getty Images)
(NO U.S. TABLOID SALES) American President Bill Clinton whispers to his wife, First Lady Hillary Clinton, as they and Vice President Al Gore applaud at an unidentified event in Washington DC, 1998. (Photo by David Hume Kennerly/Getty Images)
ASPEN, CO - JUNE 30: Al Gore speaks at Afternoon of Conversation during the 2014 Aspen Ideas Festival at the Aspen Institute on June 30, 2014 in Aspen, Colorado. (Photo by Leigh Vogel/Getty Images)
