Trump tweets about China/North Korea again

You have to wonder what's going on in the background as Trump continues to pile on the pressure.

He's made this point a handful of times before so maybe there is some urgency and he wants to see something happen ASAP.

Or maybe he saw something on TV this morning and decided to fire off a tweet.

Hillary Clinton explained to Goldman Sachs the reasons why China is hesitant to deal with North Korea.