Sam Nunn, Robert Reich, "The Boss" Bruce Springsteen and Former Senator David Boren Endorse Barack Obama for President

Sam Nunn and Robert Reich, two Democratic Party heavyweights, formerly endorsed Barack Obama for President of the United States. The two endorsements were significant as Nunn, a former U.S. Senator from Georgia who served as chair of the Senate Armed Service, had talked of his own third-party bid for the Presidency, and Reich had served as President Bill Clinton's Secretary of Labor under President Bill Clinton.

One of the reasons Nunn gave for leaving the Senate in 1997 was that the Democratic Party under Clinton had become too liberal, so his endorsement will help the liberal Obama with moderates and conservatives. Nunn reportedly had been involved in strategic talks with billionaire Michael Bloomberg, the Mayor of New York City who also is a potential third party candidate for President.

The Reich endorsement had a more personal spin as, besides having worked for Bill Clinton in the Cabinet like former Energy Secretary (and Obama endorser) Bill Richardson, he was a friend of Bill's when both attended Oxford University and had dated Hillary Clinton née Rodham when both were attending Yale Law School.

A native of Scranton, Pennsylvania, Robert Reich is an economist who formerly taught at Brandeis and Harvard and is now a professor at U.C. Berkeley. He wrote on his Web site that he had put off endorsing Obama due to his personal ties with the Clintons, but decided to take the step as "my conscience won't let me be silent any longer."

Barack Obama has now been endorsed by five former members of Bill Clinton's Cabinet: Bill Daley (Commerce), Norman Mineta (Transportation), Federico Pena (Energy & Transportation), Reich (Labor), and Bill Richardson (United Nations & Energy). The Richardson endorsement of Barack Obama was particularly devastating to the Clintons as he had been widely considered a potential running mate for Hillary.