Polls show Obama edge in Iowa, New Hampshire and Wisconsin

With less than a week before Election Day, polls released Thursday indicated a narrow edge for President Barack Obama in Iowa, New Hampshire and Wisconsin, three states that are being fiercely contested in the final stretch of the campaign.

In Iowa, Obama was at 50% among likely voters, and Romney at 44%, according to the NBC News/Wall Street Journal/Marist poll. That's slightly tighter than earlier in October, though the result Thursday was just outside the poll's sampling error of plus or minus 2.9 percentage points. A poll released Wednesday indicated a much tighter race in the Hawkeye State – the University of Iowa survey had Obama at 42