With at least two Brooklyn staff members testing positive for COVID-19 during their first week back in city schools, Randi Weingarten, of the American Federation of Teachers, joined Errol Louis to talk about what she saw during her tour of schools in the five boroughs and what she has heard from teachers.

And as a union leader who represents more than 1.7 million educators across the country, she also discussed how teachers in other states have prepared for the new school year.