howard koh, professor of public health leadership at the harvard school of public health. lso served as assistant secretary of health in the obama administration. dr. koh, thank you so much for making time for us tonight. i'm really looking forward to talking to you about this. >> thanks for having me, rachel. >> since you have been talking about this and because of your pedigree and because of what you have been through, i have been thinking about the prospect of a national mask requirement. i saw vice president biden was asked about it and said that he supports the concept this week. but i now, tonight, feel like this is a live practical question for the country in a way that it hasn't been before because of this decision that was just made by governor greg abbott in texas. i just wanted to ask if you share that sense or if you think i might be approaching this the wrong way. >> no. i think you got it right. and let's take a global view on this, rachel. as you've pointed out, we are now into month six of the worst pandemic this country has endured in a century. and around

howard koh thank you. thank you for joining us today.a check on the bloomberg first word news. >> j.p. morgan says wall street is too negative about what it would mean if joe biden was elected president at the bank saying numerous factors could make him more market friendly than others think. it could be a benefit in infrastructure spending and mire wages. president trump sounds as though he's changing his position on masks. the president will hold a rally saturday in new hampshire and face conversation are "strongly encouraged" for months the president expressed skepticism the value of wearing masks to prevent the spread of coronavirus. india has the third largest number of coronavirus cases in the world. it's surpassed russia with 100,000 cases. only the u.s. and brazil have more. india fails despite implementing one of the most expansive ockdown at the end of march. this is bloomberg. kailey? kailey: coming up, the c.e.o. and co-founder just raised $3.5 billion. where is he going to put all that capital? that's next. this is bloomberg

howard koh professor of public health leadership at the harvard school of public health.bed that and framed that just now in those closing remarks is absolutely priceless. it shows that you were assistant secretary of health during the obama administration, sir. thanks for talking to us about this. and, please, come back. i think we are in the middle of a transition here and we'd love to talk to you about it as this policy develops. >> thanks so much, rachel. >> all right. much more ahead tonight. stay with us. omizes your car ine so you only pay for what you need? given my unique lifestyle, that'd be perfect! let me grab a pen and some paper. know what? i'm gonna switch now. just need my desk... my chair... and my phone. only pay for what you need. ♪ liberty. liberty. liberty. liberty. ♪ -always have been. -and always will be. never letting anything get in my way. not the doubts, distractions, or voice in my head. and certainly not arthritis. new voltaren provides powerful arthritis pain relief to help me keep moving. and it can help you too. feel the joy of movement wit

howard koh earlier in the program, secretary under the obama administration, and he was talking aboutaking their decisions on a state-by-state basis. do you think that would here? dr. quick: absolutely. that is one of the lessons of a pandemic. and it is a lesson in every segment. -- it has got to be a whole country response. the messages have to be consistent. the response has to be coordinated. lookingence is clear around the world, the countries early, decisive, whole country response are the ones that are most successful in bending the curve close to, in some cases, close to zero. so yes, indeed -- guy: what have we learned from europe? dr. quick: i think consistent messaging about the reality of the virus, the contagiousness of it, and the protective basis which actually work. reinforcing distance, masking, handwashing, avoiding large gatherings, reinforcing that. the second thing is to provide support for all of the wherewithal that is needed. we have huge differences in test availability. at aesting, we are still fraction of the testing we need to be done in order to get the ou

howard koh, thanks for giving us the facts. >>> the man coordinating covid testing for the nation admiral brett giroir joins andrea mitchell next hour on nbc. >>> up next, inside isis, a rare interview with the kidnappers who held american aide worker kayla mueller before she was killed. now her parents demanding they be brought here to the u.s. for trial. (vo) verizon knows how to build unlimited right. you start with the network j.d. power has named the most awarded for network quality 25 times in a row. this network is one less thing i have to worry about. (vo) then give people more plans to mix and match, so you only pay for what you need. that is so cool! (vo) include the best in entertainment and offer it all starting at $35. with the most advanced iphone yet-- iphone 11 pro on us when you buy one. because everyone deserves the best. this is unlimited built right. only on verizon. >>> an interview with two of the isis terrorists dubbed the beatles. it's been five years since we learned the tragic story of kayla mueller, the 26-year-old american aide worker who traveled to a doctors