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In some ways, it can be pretty simple: win or lose, it's always positive.

Our brother bloggers at TVNewser will be live blogging tonight's results for all you political junkies out there.

Exit polls already tell us both sides are suffering a bit from going negative: "Two-thirds of Pennsylvania voters in preliminary exit poll results say Clinton attacked Obama unfairly; fewer, but still about half, also say Obama unfairly attacked Clinton."