Hillary Clinton has often been compared to [[Richard Nixon]].<ref>[http://www.realclearpolitics.com/articles/2007/11/nixon_1968_clinton_2008.html
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Nixon 1968, Clinton 2008], By John Ellis, RealClearpolitics.com, November 21, 2007.</ref> Columnist Rober Novak reported in November 2007 that a Clinton agent was spreading the word that the Clinton campaign had [[scandal]]ous information about Senator [[Barack Obama]] but was not using it for purposes of party harmony. The nature of the alleged scandal was not revealed to the source of the item, a well known Democrat, who said he thought Clinton wanted to avoid a Clinton-Obama clash that would benefit a third candidate, presumably former Democratic Vice Presidential nominee and Senator [[John Edwards]].<ref>Hillary's Nixonian TacticsAgainst Obama], by Robert Novak and Timothy P. Carney, ''Human Event'', 11/21/2007.</ref>