dr. jeremy greene, professor of medicine at johns hopkins university. dr. graham, what is the definition of a generic medicine? >> a genetic medicine is supposed to be the same as a brand-name medicine. they are the same molecule. they're supposed to perform in the same way except they are not exactly the same. we want them to be cheaper. we look at it as a way of gaining access to affordable price, which previously was only buy brand-name and were much more expensive. a generic drug in some ways affects the contact over the last 50 years. it has become a key point in attempts for the american health care be more affordable. it has been remarkably successful in set of policies. 2014, with an 84% above the prescription filled pharmacy was still generically. trillions of dollars because the substitution issued for generic drugs are brand-name drugs. the generic drug has been a problem over many years and that was one of these drugs be the same. i elaborated structures to be exchangeable and yet there are exactly the same. if you like at the networks approve f

dr. jeremy green who is a professor of medicine here at johns hopkins, university. dr. greene what's the definition of a generic medicine? >> guest: oh a generic medicine is supposed to be the same as a brand name medicine. we think of them as identical they are the same molecule, they're supposed to perform in exactly the same way except that they're not exactly the same. we want them to be cheaper. we look at a generic drug as a way of gaining more access and affordable price to medicines which, when they're previously available only by a brand name under a monopoly are much more expensive. so a generic drug in some ways is a concept it's a very contested object, and it's a very recent object over the last 50 years. it's become a key point in attempts to help american health care be more affordable at the same quality. in some ways it's been remarkably successful as a set of policies. in 2014 more than 84% of all drugs, prescriptions filled at the pharmacy were filled generically. trillions of dollars have been estimated to be saved because of substitution of cheaper

jeremy abrahmson. they describe how their experience of mayors apply to their current roles. >> are we ready? is our dream team ready? all right. yesterday, you heard from drrbara who wrote a book called "it there is ruled the world. ." i'm starting to think that obama read that book. we have to give a round of applause for that. three former mayors are in his cabinet. he just appointed the director of government affairs to the white house as well. we had an incredible presentation, a great relationship with this administration, and i thought it would be interesting to bring these mayors back to our meeting. we, as mayors, talk about what i call a new federalist compact. an opportunityan opportunity for us to redefine our relationship with the federal government, and for the government to redefine its relationship with mayors. i know we like to hear from these particular mayors. i want to hear what their perspective is. in terms of what they used to think about federal government, which could be interesting. i want to introduce them one at a time. are you ready? play my music real quick. ♪ giving up. -- here we go. first, he was a mayor from 1987 and becam