WIN BIG OR GO HOME? Clinton (Photo: Getty Images)

As you are no doubt aware, there's a primary today in Pennsylvania. New York's Peter Keating evaluates the contest and predicts how various scenarios will affect the state of the race. His assessment: An Obama victory is unlikely, but should it occur the race is over. If Clinton wins by less than six points, she has failed to meet expectations and will be even more strenuously advised to drop out. A 7-to-12 point Hillary victory is what most people are expecting, so it won't change much. A win of 13-to-18 points means "the campaign would stretch on for another month." And a Clinton win of 19 or more points "would not only underscore Obama's weaknesses among culturally traditional whites. It would wipe out half of his national lead, boosting Hillary's chances to eventually overtake him in at least some popular-vote calculations."

But why stop there? What happens if Clinton is victorious by an even larger margin? Radar breaks it down:

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