Non-candidates keep presidential buzz alive

Chris Christie isn't running for president. But that hasn't stopped some fans from begging the New Jersey governor to join the Republican field.

Christie, Sarah Palin, former New York Mayor Rudy Giuliani and real estate mogul Donald Trump have all been floated as possible late entrants to the race. But many analysts believe the field is already set.

Christie told an audience in California Tuesday he still had no plans to run for president but would listen to those who want him to change his mind.

Palin told Fox News she would decide soon but said she worried the presidency might be too "shackling" for her.

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