China hits back with export controls, Canada and Mexico remain under threat. USPS closes then reopens "di minimis" small package loophole

Beijing hit back with its own tariffs and export restrictions after being subjected to levies by President Trump. Trade experts said China appeared to aim for minimal short-term harm while showing the range of its possible responses.

The world’s two largest economies did not cut a deal to avert sweeping U.S. tariffs, which came into effect after midnight. Beijing immediately retaliated.