Today, @USTradeRep Greer and I spoke with Chinese Vice Premier He Lifeng ahead of @POTUS @realDonaldTrump and President Xi's meeting in September. In our discussion, I emphasized that we expect Beijing to fully meet its commitments on rare earths and U.S. agricultural products. We also discussed implementation of the Trade and Investment Boards as a mechanism to secure concrete progress toward a more balanced, fair, and constructive U.S.-China economic relationship.