Christie campaign strategist Mike DuHaime said the Zuckerberg event was a sign of the governor's bipartisan appeal.

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Mr. DUHAIME: Well, there's been - there's no doubt that the Democrats had a historic primary on their side.

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"We think it is great that the bulk of our support comes from in-state, " said Mike DuHaime, Mr. Christie's campaign strategist.

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