to ramp up the pressure on some members of his own party. also this morning, morphing challenges with this pandemic. we just crossed 41 million known covid cases since it all started and right now in the largest school district in the country, kids are back in class. it's the first day of school in new york city with no remote learning option. earlier on today's school town hall, dr. walensky said. >> getting everyone vaccinated that's eligible and to surround our younger kids by people who are vaccinated, masking in the schools, ventilation, screening, testing, those strategies work. >> also this morning, to get a booster jab or not? that is the question health experts are tackling this morning. a group of leading u.s. and international scientists say in the peer review journal that