Since the 1960s, tariffs — or import taxes — have emerged from negotiations between dozens of countries. Trump wants to seize the process. “Obviously, it disrupts the way that things have been done for a very long time,

American President Donald Trump has announced imposing reciprocal tariffs on its major trading partners including China that levy higher import duties on goods shipped from the United States. He has already announced a 25 per cent duty on steel and aluminium imports,