05/23/2008 05:12 am ET Updated May 25, 2011

Al Gore Endorsement: When Will It Happen?

John Edwards's endorsement yesterday of Barack Obama leaves former Vice President Al Gore as the major Democratic figure still on the sidelines in the party's presidential race.

Edwards, a former North Carolina senator who ended his own bid for the nomination in January, said Obama is the candidate who can unite Democrats for the ``fight of our lives'' in the November election.

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