E.J. Dionne says that in 2010, disaffected voters didn't embrace the Republican vision. They looked in vain for the Democratic one. Among the poll findings that bombarded us after the 2010 elections, three are of overwhelming importance. First, the age composition of the electorate changed radically. In 2008, 18 percent of voters were under 30 and 16 percent were over 65. In 2010, only 12 percent were under 30, while 21 percent were over 65. Not surprisingly, 2010's older electorate was also more conservative. Second, Democrats lost enormous ground among white working-class voters. In 2010, Democrats lost white working-class voters by 30 points. In 2006 and 2008, they lost them by only 10 points. Third, Republicans won control of the House of Representatives because many voters who didn't really like the GOP voted for its candidates anyway. According to the major TV networks' combined exit poll, 52 percent of November voters had an unfavorable view of the Republican Party, yet 23 percent of this group voted for Republican House candidates. These are the quintessential disaffected voters, and they may be the key swing voters of 2012. KEEP READING. . .