Epic Washington News Today

The man who was perhaps the most ven rated political journalist of our time is likening her situation to the epic washington scandal he helped uncover. tonight chief washington correspondent and watergate historian james rosen reports on bob woodwards comparison of e-mailgate and watergate. >> reporter: as president, richard nixon recorded 3700 hours of tapes, of which 18 1/2 minutes, less than 1% of the total, were erased by a culprit never identified. as secretary of state, hillary clinton sen...