reporter: and here is why miami dade is so important. this is the largest school district in the state. 3 34,000 students enrolled in this district. and they are now one of seven school districts moving forward with these mandates. jim, i can tell you in checking in with a few other districts there are others that as we speak are considering moving down the same path. understood, leyla good to have you there and seems a lot of parents support it. still to come this hour, president biden now says the u.s. troops may not leave afghanistan on that self-imposed deadline of august 31st. taliban responding those troops must be out by the end of the month. are we going to listen to them? later a spike in covid cases fueled by the delta variant has forced an entire texas school district into quarantine. will that make the state s governor change his mind on mask mandates? we ll see. or do the politics rule?