Obama's slight edge in three swing states

According to a new NBC/Marist poll, President Obama holds a slight edge over likely Republican nominee Mitt Romney in three pivotal swing states: Florida, Virginia and Ohio. Emphasis on the word slight.Obama is ahead of Romney by a four point gap in both Florida and Virginia, 48 percent to 44 percent, among registered voters. And the president’s up by six in Ohio, 48 percent to 42 percent. While the scales are tipped in Obama way, he’s still under the 50 percent marker, so Romney is still within striking distances.