Reports: Sen. John Ensign to resign from Congress - On Politics: Covering the US Congress, Governors, and the 2010 Election - USATODAY.com

Embattled Sen. John Ensign is reportedly going to resign from Congress as early as tomorrow, according to Politico and Roll Call.

The Nevada Republican, who already said he would not run for re-election next year, is being investigated by the Senate Ethics Committee for actions related to an extramartial affair with an aide.

Politico is quoting unnamed aides and Roll Call cites a "well-placed" source.

Ensign, once considered a rising GOP star, said last month he would not seek a third-term next year in part to spare his family from a wrenching campaign that would dredge up details of his affair with Cynthia Hampton.

via content.usatoday.com