MADISON, Wis. (AP) – Democratic state Sen. Jon Erpenbach says he will be talking with Republican lawmakers about accepting a federally funded Medicaid expansion that ends after a certain period of time. Erpenbach discussed the possible deal Tuesday at a health care conference.  Republican Gov. Scott Walker has proposed rejecting the Medicaid expansion in his state budget, which is subject to approval by the GOP-controlled Legislature.  Erpenbach says he knows of Republicans in the state Senate who have a difficult time with Walker’s plan, which would result in turning away an estimated $4.4 billion in federal funding to expand Medicaid for 175,000 adults.  Erpenbach and other Democratic lawmakers on a panel at the conference criticized Walker’s plan and say it is motivated by politics, not what makes sense for the state.