intelligence challenge during the election. and so that it could be wrapped up. everybody knows the facts. and then we get on with doing the things we need to do to prepare for the next election cycle. the russians have tremendous capability. it will be better in 2020. other actors will have capabilities in 2020. not pretending we weren't attacked. >> right. the other big nuclear story here is north korea as an aspirational power. here is what donald trump wrote on twitter. north korea just stated it's in the final stages of developing a nuclear weapon capable of reaching parts of the u.s. it won't happen! end quote. how does that declare tiff statement compare to the actual bipartisan process over two administrations to have some kind of constraint of their ambition? >> i work here at stanford with george schultz, the former