Three-term incumbent [[Russ Feingold]] has positioned himself for a comfortable reelection in 2010. Although the race would immediately become competitive if former governor and Health and Human Services Secretary [[Tommy Thompson]] runs. | Three-term incumbent [[Russ Feingold]] has positioned himself for a comfortable reelection in 2010. Although the race would immediately become competitive if former governor and Health and Human Services Secretary [[Tommy Thompson]] runs. |