Xi assured Trump he would cease aid to Iran, US ambassador to China claims
The United States is demanding that China cease any aid to the Islamic Republic of Iran, and the U.S. ambassador claimed Beijing is playing ball.

TL;DR
- The U.S. is demanding China stop providing aid to Iran.
- U.S. Ambassador to China David Perdue claims Beijing is complying with this demand.
- The request was made by President Trump to Chinese President Xi Jinping.
- The issue was discussed during Xi Jinping's visit to Washington.