Voters in union households provided a big boost to President Obama in Ohio and Wisconsin, where key battles over public sector unions have been waged. Their strong support helped him staunch big losses elsewhere among white working-class voters.
White voters without college degrees made up nearly half of the total electorate in both Ohio and Wisconsin, according to exit polls, and Obama won a far greater share of these voters than he did nationally. [cont.]
Peyton M. Craighill & Scott Clement, Washington Post