matt, explain why it is so important for china to be involved in this solution with north korea. snore well, china is the only major ally on the international stage for the north koreans. so really anything that you want to do, whatever your solution proposed solution is for what s going on in north korea, china is going to be involved. that is something that the trump administration is well aware of and is trying to get china to use that leverage to get north korea to rein in its nuclear weapons development program. what the trump administration is saying and what secretary of state tillerson told his counterparts here in beijing on friday is that you should be doing more. you should be using that economic leverage that you have over north carolina to get them to stop doing what they re doing. china pushes back. this is a big disagreement between the united states and china. china says we re doing enough already and in fact, it s the united states that holds the key to solving this pr