Can Obama Be Called the 'Presumptive Nominee'?
Several more superdelegates threw their support behind Democratic presidential candidate Barak Obama on Friday, all but erasing the once-substantial lead of his rival, Hillary Clinton. Nonetheless, Clinton vows to continue campaigning.
Political analysts E.J. Dionne of The Washington Post and David Brooks of The New York Times tell Michele Noris that the race is essentially over.

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