US Democratic presidential candidate Senator Hillary Clinton (D-NY) addresses supporters at her "Super Tuesday" primary election night rally in New York, February 5, 2008. Twenty-four of the 50 states are holding nominating contests for one or both parties on "Super Tuesday" for a huge haul of delegates to this summer's conventions that will choose the candidates for the November presidential election. REUTERS/Brian Snyder (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)