How Scott Walker won the Wisconsin recall election

… Voters who turned out for this election narrowly supported Walker’s handling of the collective bargaining issue: 52 percent approved, and 47 percent disapproved. … Wisconsin voters were also split in their views of unions for government workers. According to exit polls, 51 percent said they viewed these unions favorably; slightly fewer – 45 percent – held unfavorable opinions. [cont.]

Sarah Dutton, Jennifer De Pinto, CBS News