In Battleground Iowa, Early Voting Turnout Is Key

Aired: 10/3/2012 | 0:08:17 | Clip
According to one poll, less than 2 percent of Iowa voters are still undecided. In that state, the candidates have made 30 campaign visits and have barraged the air waves with ads. Hari Sreenivasan reports on how both campaigns are hoping that early voting, now begun, will improve overall turnout and give them a winning edge.