WIRE-AP  ·   January 6, 2014

'Polar vortex' brings below-zero temps to Chicago

- Gov. Pat Quinn is issuing a disaster declaration because of bitter winter weather and activating the Illinois National Guard. ()

- Gov. Pat Quinn is issuing a disaster declaration because of bitter winter weather and activating the Illinois National Guard. ()

'Polar vortex' brings below-zero temps to Chicago (1:01)

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