china. >> china always goes through a cycle where it's tougher on north korean sanctions and does what it says it will do early in the cycle of aggression, but then slowly makes concessions. there is talk xi jinping may pay a state visit to north korea soon. president trump needs to make clear if north korea's capabilities expand, but fit was, that would only bring more and more u.s. and ally capabilities. more u.s. forces in the pacific. japan might spend more on its military. and that is a message that should keep china willing to pressure north korea. arthel: any potential ripple effectser from president trump? >> i don't think so. there looks like good signs