Looking at what seems to be a big night for Hillary's campaign tonight (Zogby(*) -- has the overnight margin increasing from 48-42% yesterday to 51-41% today), get prepared for more about how she 'connects' with regular voters while Obama-is-an-elitist.
Exhibit A is Hillary's recent 'shot-and-a-beer' night out (albeit in Indiana, not Pennsylvania):
But the moment is reminiscent of then-Russian President Boris Yeltsin at the end of his final campaign:
Even more direct was Hillary's late ad (went up yesterday, apparently), which seems to be aimed more at post-Pennsylvania pundit-analysis rather than actually moving voters in the state (putting it up less than 24 hours before the polls open makes it unlikely to be seen by a significant number of Penn. voters). You can almost hear the CNN team now: "Hillary won because she raised questions about whether Obama is up to protecting the country, as evidenced by this video:"
(*) - Zogby is admittedly not the most accurate of pollsters, but is widely reported.