Sen. Russ Feingold, D-Wis., left, with Democratic presidential candidate Sen. Barack Obama, D-Ill., Scott Campbell, and Wisconsin Gov. Jim Doyle, walk to a barbeque at Rod and Gun Park in Eau Claire, Wis., Sunday, Aug. 24, 2008.(AP Photo/Alex Brandon)

In this March 29, 2001 photo, U.S. Sen. Russ Feingold, D-Wis, checks his watch as he and Sen. John McCain, R-Ariz., walk off the roof of the Russell office building on Capitol Hill after an early morning Time Magazine photo session Thursday morning March 29, 2001 in Washington. (AP Photo/Stephan Savoia, file)

Rep. Danny Davis, D-Ill., second from right, recounts his alleged incident of racial profiling, Thursday, dec. 13, 2007, during a news conference on on Capitol Hill in Washington. Joining Davis, from left are, Sen. Russ Feingold, D-Wis., Rep. John Conyers, D-Mich., and Rep. Christopher Shays, R-Conn. (AP Photos/Susan Walsh)

Rep. Danny Davis, D-Ill., second from right, recounts his alleged incident of racial profiling, Thursday, dec. 13, 2007, during a news conference on on Capitol Hill in Washington. Joining Davis, from left are, Sen. Russ Feingold, D-Wis., Rep. John Conyers, D-Mich., and Rep. Christopher Shays, R-Conn. (AP Photos/Susan Walsh)