Dems not polling well

Why, what could possibly be the reason?

It's really looking like a brutal year for Democrats in the Big Ten states.Barack Obama's approval numbers in the two places we polled this week- Wisconsin and Ohio- tell the story. He won Wisconsin by 14 points in 2008 but we find his approval there at a net -2 (46/48) for a 16 point drop since the election. It's a similar story in Ohio. He won there by four points in 2008 but our approval numbers there for him tomorrow will show him at -13 (40/53) for a drop of 17 points. If his national approval rating was falling the way it is in these two states he'd be at about 43/53 for the whole country.