joining me colleen mccain nelson, jonathan martin and anne gearan. >> if you'rmu joe biden and you're seeing bernie sanders, an avowed socialist from vermont and who is 74 years old, he is drawing these crowds, has this real organic energy and he is proving hillary clinton has real vulnerabilities within the democratic primary process, you're joe biden, you see that, you have to think long and hard about running. >> rose: we conclude with a conversation about chinese currency, american manufacturing and many other things with the c.e.o. of dow chemical company, andrew liveris. >> massively important we stay agile, nimble and entrepreneurial in this sort of volatility. this world we have, uncertainty and volatility is not going away. we're traveling at the speed of live, is the term i like to leave. the internet, interconnectedness, all the books that have been written, the heart beat away is an issue. everything sin stant. how do you deal with that? you have to have a culture that deck side in the moment what the right thing to do is. >> rose: the american political campaign and runni