dr. maureen condit a -- school of medicine has justified before congress in written scientific evidence regarding fetal pain is undisputed. that evidence shows the brain circuitry responsible for the detection of her spouse to pain is established well before the 20 week mark. this bill is consistent with precedence than another way. the supreme court has approved actually prohibiting abortion after a point when the pre-born child takes on important quality that justifies protection. in roe v. wade that reality was the viability or the ability to survive outside of the womb with artificial aid. in this bill that quality is the ability to feel pain which is then universally recognized as compelling. both medicine and the law for example imposed a duty to relieve or to avoid pain. just look at the web site of the national institutes of health. includes an article by dr. eric j. cassels professor of public health at the cornell university medical college. he writes the obligation of physicians to relieve human suffering stretches back into antiquity. he calls the leave of ciphering quote one of the p

dr. maureen condit, professor of anatomy at the university of utah school of medicine, testified before congress and wrote that the scientific evidence regarding fetal pain is undisdisputed. that evidence shows that the brain's circumtory responsible for -- circuitry responsible for the response for pain is established well before the 20-week mark. this bill is consistent with precedent in another way. the supreme court has approved actually prohibiting abortion after a point when the preborn child takes on an important quality that justifies protection. in roe v. wade, that reality was a viability or the ability to survive outside the womb with artificial aid. that allows it to feel pain which is part of the area. and they were able to feel pain. and it says the doctor, he writes that only it stretches far back into antiquity and that it's part of the areas of medicine. it allows them, the ethical obligation of painful is the area's area. and the ethics, i guess i would say, among, the ability to feel pain. and it to the abortion, it would before them. and it allows them the certain within the

conditions. and about all the medicines you take including herbal supplements. harvoni should not be taken with any medicines maureen: joining us live is retired neurosurgeon turned presidential candidate dr. ben carson. thank you for joining us today. >> good to be with you. maureen: earlier we showed a national poll showing you closing in on donald trump. you have support of up to 20% of potential g.o.p. voters. with this poll comes two days with a debate. debate in two days. donald trump has upped the attacks on you. when you are in the debate you will be facing trump and also, of course, all of those behind you. what is your strategy going to be? dr. carson: it's simple and what it has always been. to tell the truth and talk about the issues. i'm not going to get in the mud pit and talk about the people. i don't see anything productive about that. maureen: that seems to be the style in the last few weeks. slog mud at the candidates. do you promise not to do that? dr. carson: i won't do that. the perception i had done it earlier in the week is just a perception. never the intent. maureen: this week the nuclear deal negotiated to keep iran from acquiring nuclear weapons go into effect.