On night 2 of the DNC in Chicago, a lively roll call is planned with speeches from Michelle and Barack Obama.  CBS News Correspondent Matt Pieper is at the Democratic National Convention and joined Drive Time with Suzanne Colucci.

<p>On night 2 of the DNC in Chicago, a lively roll call is planned with speeches from Michelle and Barack Obama.  CBS News Correspondent Matt Pieper is at the Democratic National Convention and joined Drive Time with Suzanne Colucci.</p>

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