09/04/2009 05:12 am ET Updated May 25, 2011

Emails: Ensign Affair Known About By NRSC A Year Ago

Republican Sen. John Ensign is methodically trying to turn the page after admitting to having an affair with a former campaign staffer, but new details make it difficult to move on as the story is still being written.

E-mails obtained Monday by Las Vegas Sun columnist Jon Ralston show that Ensign's top staff at the National Republican Senatorial Committee knew of the affair last summer, before the party suffered severe losses in the 2008 election that put Democrats in sight of a filibuster-proof Senate.

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