Pennsylvania Senator Rick Santorum is trailing Democrat challenger Bob Casey by six (47% - 41%) in a three way race. Republican challenger Lynn Swann is trailing incumbent Governor Ed Rendell by 10 (51% - 41%), according to a Strategic Vision poll.
There's time to catch up, of course, and Santorum has been closing the gap, but he is clearly in trouble. All those blue collar, pro-life Catholic Democrats who would have voted for Santorum if he were running against a pro-choice opponent will instead be voting for the pro-life Catholic Democrat Bob Casey this time around.
Pennsylvania's political demographic looks like a big T with Democratic strongholds Philadelphia and Pittsburgh in the southeast and southwest corners respectively and the rest of the state tilting with varying degrees of slant toward the Republicans. If Santorum can get good turnout from the T he might be able to offset the big advantage that Casey has in the corners.
As for Swann, he has missed too many opportunities to take advantage of Rendell's biggest vulnerability, his lethargic response to the need for property tax reform, especially after he had originally promised to address it in his first campaign. He might pull off an upset even yet, but political observers in the state aren't betting on it.