By TINA DAUNT, CAUSE CÉLÈBRE

WITH less than a week until Iowa’s first vote is cast in the 2008 presidential election, the politicians aren’t the only ones feeling the heat: Celebrities, who have become important players in the political fundraising process, are under increasing pressure to campaign for their favorite candidates in the early caucus and primary states.

But how a star — particularly a supernova — responds isn’t always a simple matter of “yes” or “no.” With the exception of Oprah Winfrey, who’s been working the trail with mixed results for Democrat Sen. Barack Obama, most of the A-listers have opted to stay out of the spotlight for now…

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