While I remain skeptical about a Biden candidacy, barring Hillary Clinton's situation worsens greatly in the coming weeks, his former Chief of Staff and Senate successor Ted Kaufman posted a link on Facebook yesterday pointing to this Huffington Post article on the high rate of vice presidents becoming presidential nominees and presidents. Kaufman doesn't tip his hand about whether Biden will or won't take the plunge, but his desire to call attention to this is interesting. Have a great Labor Day Weekend, Charlie Cook

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