Source: Reuters via Raw Story
(Reuters) - It was one of the most high-profile investigations of a senator in years: John Ensign of Nevada had conducted an affair with his campaign treasurer, Cynthia Hampton, the wife of his closest friend and chief of staff. His family later paid $96,000 to the couple, and suspicions arose that the payment amounted to hush money in the form of an illegal campaign contribution.
Ensign's once promising political career was over because of the disclosures, but he was no longer in any legal jeopardy.
The Justice Department had informed him in December 2010 that he would not face criminal charges. An aggressive Senate Ethics Committee investigation was still pursuing Ensign, but that probe would be shelved once he resigned.
As Ensign was preparing to leave the Senate, investigators for the Senate Ethics Committee were attempting at the 11th hour to obtain a trove of email correspondence concerning the payments to the Hamptons. The trouble for the committee was that Ensign's attorneys insisted the emails were privileged
More at:
http://www.rawstory.com/rs/2011/05/26/justice-department-almost-certain-to-reopen-john-ensign-case/