Some of the highest percentages of voters who could be tossed would be in Wisconsin’s two largest cities and areas with college campuses, epicenters of Democratic support, a Milwaukee Journal Sentinel analysis found. Milwaukee and Madison, the largest cities and base of Democratic support, account for 23% of the letters that were sent to voters who may have moved. More than half of the letters went to voters in municipalities where Democrat Hillary Clinton defeated Trump in 2016, the analysis found.