Nevada Sen. John Ensign announces resignation
LAS VEGAS — Nevada Sen. John Ensign announced he will resign amid an ethics investigation.
AP Photo/Las Vegas Review-Journal, Jessica Ebelhar
U.S. Sen. John Ensign, R-Nev., gives his final address to the Nevada Legislature as a sitting U.S. senator during a floor session at the State Legislative Building in Carson City, Nev. on March 22, 2011.
Ensign said Thursday he will send Vice President Joe Biden a letter Friday making the resignation official. He said he has not violated any laws or rules, but said he c...