When he spotted Elizabeth Warren’s media consultant at a national convention party for Democratic high-rollers, Phil Johnston could not contain his concerns over the Senate candidate’s television ads. “Do you think you could run one ad in which she smiles?’’ the former Massachusetts party chairman asked Mandy Grunwald. It was an awkward run-in, but one that came at a critical time in the course of Warren’s yearlong and red-hot run for US Senate, as the first-time candidate struggled to learn the craft of politics and campaigning.
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