abc news aviation analyst john nance will share his insights with us.lems san francisco is facing, some are calling for putting more power in the hands of mayor london breed. our media partner, the san francisco standard, will join us to discuss what kind of impact that might make. but first, it's back to school time. amid a myriad of health concerns and questions from the rsv vaccine to a covid surge to screen time for kids. here to talk about it all, abc news special correspondent dr. alok patel. hey, dr. patel. >> kirsten, it's always an honor to be here. it's been a while. i wish we didn't have a reason to talk about these back to school concerns, but here we are. >> well, you can just come in and we can just hang out and talk about whatever. anything and everything. but you're right. today we have to talk about back to school and keeping kids healthy. >> i'm all about that. >> okay. i know you are. okay so rsv, let's begin there, because that respiratory virus that sends so many kids to the hospital last year, we don't want to get that again. and w

you know, congressman john nance garner, a man who went on to become vice president of states and then went on to become speaker of the house. very distinguished fellow. so what was going on and why did it take so long to cut the income tax when they cut the capital gains tax rate from 73? as of the beginning in 1921, down to 12 and a half? think about that 73 to 12 and a half, a huge jump and almost immediately. so where do 12 and a half come from? melon this long time goal was always a 25% tax. is capital tax proposal had a two year holding period so you know divide 25 by two and you can get 12 and a half percent that way. i haven't seen a quotation. i went through his book looking for a justification for the 12 and a half percent rate, but still pretty stunning. so the real question then, what did to why did congress suddenly turn on a dime and cut the capital gains tax rate so quickly? and there we have the supreme court coming to the rescue. if you will. the supreme court considered not one, not two, but three, but four cases involving. the capital gains tax in early 1921. and tha