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    Critical Counties - Prince William, VA: The new America

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Critical Counties - Prince William, VA: The new America

CNN's John King examines the counties that he'll be keeping a close eye on during Election Night. Next up: Prince William County, Virginia.

Critical Counties - Prince William, VA: The new America

CNN's John King examines the counties that he'll be keeping a close eye on during Election Night. Next up: Prince William County, Virginia.