There have been a number of swing state polls. When you see them, look at party ID. PPP has D+13 in North Carolina and Marist has D+10 in Ohio. There's no way the electorate will be that Democratic. It appears the media is using 2008 as their baseline and sticking with somewhere within a few points either way. That's irresponsible.
The polls which came out at the end of last week were less favorable to Obama and those this week may be more so. So don't judge on a few numbers you might hear without looking at when the survey was conducted and what they're using for party ID.