Midterms latest: Forecaster moves 12 more House races toward Dems

The Cook Political Report, an elections forecasting agency, is predicting that Democrats will fare better than previously expected in 12 House races and ultimately win majority in the chamber. Jessica Taylor from the Cook Political Report explains the new prediction, and CNN experts analyze the report's implications for control of Congress. Also, Democratic Congressional Campaign Committee chair Rep. Suzan DelBene (D-WA) weighs in, and CNN's John Berman speaks with Bob Harvie, who's the Democra

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