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Gallup has it within the margin of error. Obama has gained 16 points since January 20, while Clinton has lost two. The momentum of that gain is sure to make a difference on Tuesday. And a small lead in California? zogby has even better news for Obama. Something is happening out there. As for Romney, some good news in California. But a national 20 point deficit against a rival who has won South Carolina does not a nomination make.

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