Pennsylvania voters sour on Obama ahead of 2012

President Obama won Pennsylvania by double-digits in 2008, but judging by his poll numbers there now, it's hard to imagine he'll be able to pull off a similar victory next year.

A new Public Policy Polling survey finds Obama's approval rating in the state at just 42 percent--one of his lowest ratings among next year's block of expected battleground states. That's more than a 20 point drop since Obama came to the White House in 2009.

Even self-described Democrats have issues with the president. While Obama's rating with Democrats nationally is at 81 percent, just 68 percent of Dems in the state approve of the job he's doing.

The poll finds him virtually tied with three potential GOP opponents--Mitt Romney, Mike Huckabee and Rick Santorum, a former Pennsylvania senator who is barely a blip on most national polls. As PPP notes, the numbers are surprising given that most GOP candidates in the state actually boast lower approval ratings than Obama.

(Photo of Obama: Pablo Martinez Monsivais/AP)