“Just issue an executive order that any nation trading with North Korea will immediately be precluded from trading with the US until the trade ceases, That means you China.”
You do realize that the US has put itself into a trade position with China where that has only the most infinitesimal chance outside of war between the US and China of ever happening?
Now is time for grand bargain. Fat boy either gets droned or moves to Switzerland with his $$$ and the south takes the north like the reunification of Germany and we agree to pull all US forces out of Korean Peninsula. Otherwise we will use whatever weapons at our disposal to stop fatty.