A Republican governor, Tommy Thompson, started Wisconsin?s BadgerCare health insurance for low-income families in 1999. A Democratic governor, Jim Doyle, expanded the program in 2008. The parties have disagreed on details over the years, but no aspect of the Medicaid program has been as explosive as a further expansion allowed this year through the federal Affordable Care Act. Different opinions Republican Gov. Scott Walker rejected the expansion. Democratic gubernatorial candidate Mary Burke says she would accept it. How much the Medicaid expansion or other health care issues will resonate with voters in November is hard to tell.