President Trump has said China has reached out to negotiate a deal. Another official said the administration has already been working on supply chain issues for some time in anticipation of the imposition of the tariffs.

Your Christmas decorations probably come from this one Chinese city. But anxiety is high, with vendors on the front lines of the US-China trade war.

Trump's comments further pointed to a diminished appetite for sharply higher across-the-board tariffs on dozens of countries after markets reacted violently to their introduction on April 2.