US president’s erratic approach has fuelled a dizzying array of tariff measures, before pausing or changing them, prompting a chaotic series of responsesUS politics live – latest updatesDonald Trump is sending shock waves through the global economy by waging trade wars with the US’s traditional allies and enemies alike.The president is using tariffs – border taxes levied on imports – to tackle what he sees as “unfair” trading practices by US trading partners. The aim is to promote US manufacturing by making foreign imports more expensive; to raise revenue, and to use tariffs as a bargaining chip with trading partners. Continue reading...