new executive order that targets banks, companies and individuals, that finance and facilitate trade with north korea. in another significant move, the president said china told its central bank to stop doing business with the north. >> -- provides us with powerful new tools, but i want to be clear, the order targets only one country, and that country is north korea. the regime can no longer count on others to facilitate its trade and banking activities. >> that move comes two days after the president threatened it provoked to totally north korea. today, the country's foreign minister slapped back, he said the president's words were just the sound of a dog barking. joining us now nbc news white house correspondent kristen welker at trump tower. and from washington, jordan