Fraud in the Clinton Campaign

Senator Hillary Clinton's campaign is having to review thousand of dollars that have been raised by Norman Hsu after learning that he had a warrant for his arrest stemming from a 1991 from his contribution in an attempt to defraud investors in his New York apparel business. Hsu has risen hundred of thousand of dollars for Democratic Candidates since 2003. Could this set back hinder Senator Clinton's, or any of the Democratic Candidate's chance for the White House in 2008?