Hillary Clinton split the last two primaries with Barack Obama tonight, winning South Dakota and losing Montana. Obama crossed the threshold of delegates needed to win the nomination, but Team Clinton has still not conceded. Instead a furious PR campaign centered around the possibility of Obama offering her the V.P. slot was fueled by a Clinton conference call, in which she said she was “open” to the possibility. She has brandished her eighteen million votes as a political club against Obama, and I can imagine that those direct negotiations will be tough. So does Obama offer her the slot, and is that the Clinton goal after all? Some great politics to come.

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