Brett McGurk, Top U.S. Envoy In ISIS Fight, Resigns

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• Colorado Iranian activist calls for action from world leaders following "massacre"

  

• A peek inside the gym where Sacramento-area climbing legend Alex Honnold got his start

  

• Detroit Zoo closing, festivals canceled, due to winter weather

  

• School closings for Chicago, Illinois, Indiana ahead of Extreme Cold Warning

  

• Sen. Klobuchar takes first step in run for Minn. governor, source says

  

• NYC public schools expected to go with remote learning on Monday

  

• State lawmakers grill top brass at the Colorado Department of Corrections