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Key down-ballot races that could decide control of Congress
5m 29s
While the battle at the top of the ticket has dominated the news this election cycle, there are key down-ballot races that could shift the balance of power in Congress. The majorities in the House and Senate are razor-thin with Republicans in the House leading by five seats and Democrats in the Senate holding on by only two seats. Amna Nawaz and Geoff Bennett discussed more with Amy Walter.