If ever there were a place where a last-ditch torrent of money could move the needle, this is it. For the last couple of months, there has been a void of presidential ads in Pennsylvania. So when Republican strategists looked for places where their money could go the furthest, they set their sights here, reasoning that a dollar spent in Erie or Altoona would have a greater impact than in a place like Las Vegas or Cleveland, where political commercials have clogged the airwaves…

“The biggest drop-off for the president has been in these more suburban, upper-class areas,” said Jim Lee, the president of Susquehanna Polling and Research, a Republican firm. “The women there tend to be very moderate, pro-choice, pro-gun control, pro-gay rights. And they don’t fear a Romney presidency like they would maybe a Rick Santorum presidency. I don’t think Obama has been able to convince them that Romney is a radical.”

Liberal groups like Planned Parenthood said that some of the Republicans’ recent messaging is helping the Republican close the gap with women. Among recent ads is one in which a woman directly refutes Obama ads that portray Mr. Romney as extreme on reproductive health issues.