Exit Polls: Obama Makes Big Gains in Clinton's Core Support

Barack Obama beat Hillary Clinton in some of her core support groups, trounced her on electability and rode broad support from independents to victory in Wisconsin, while John McCain gained ground among conservatives in winning his party's primary. Clinton struggled in her base groups -- barely winning white women, losing less-educated and lower-income voters -- while Obama swept up younger voters, winning those under 30 by one of his biggest margins yet. He beat by Clinton by 31 points among... Full Story