AdvertisementDon't Call It A Comeback: School Districts That Never Opened Are Having Trouble NowJanuary 27, 2021Anya KamenetzSarah KarpEda UzunlarfacebookEmailChicago Teachers Union leaders appear outside City Hall with a list of their demands and a box of coal in December. As of Tuesday, the union has failed to reach an agreement with Chicago Public Schools on a return to in-person learning. (NurPhoto via Getty Images)