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Presidential candidates often keep a running list of influential individuals who they will informally call for ideas, advice, and, perhaps, to scope them out as a potential running mate.
And for several candidates, including at least one in the top tier, former Tallahassee Mayor Andrew Gillum is on speed dial. Sen. Elizabeth Warren (D-MA), in particular, has been in contact with Gillum over the past several months, multiple knowledgeable sources told The Daily Beast.
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