For the first time, working-class whites make up less than half of Ohios eligible voters, part of a demographic shift in a key Midwestern swing state that is pushing political parties to widen their appeal beyond the once-dominant bloc. Nationwide, working-class whitesdefined as those ages 18 to 64, with less than a bachelors degreeare more likely to be socially conservative, less optimistic about their futures and skeptical of big government.