>> the same mandate was supposed to go into effect for workers in new york city schools today and a federal judge this weekend blocking the city from enforcing a requirement. still, mayor bill de blasio was called on everyone in the educational field to roll up their sleeves to create a safer environment for kids, noting that 87% of the department of education members already has. >> 90% of teachers. 97% of principles leading the way, thank you to everyone who got vaccinated. >> a hearing will take place on wednesday morning to determine if this mandate legally can hold up in schools. sandra and john. >> alex hogan reporting live from new york city where the sirens add to the urgency at hand. >> john: all about being in new york city. the centers for disease control releasing new studies showing schools without mask mandates are more likely to have