Russ Feingold

Russell Dana "Russ" Feingold (born March 2, 1953) is an American politician and lawyer from the state of Wisconsin. He was a member of the Democratic Party of the United States Senate (1993 to 2011) and a Wisconsin State Senator (1983-1993).
On May 14, 2015 he announced his candidacy for a 2016 U.S. Senate run against the incumbent Senator, Ron Johnson.