U.S. President Donald Trump's tariff decisions since he took office on January 20 have shocked financial markets and sent a wave of uncertainty through the global economy. Here is a timeline of the major developments: February 1 - Trump imposes 25% tariffs on Mexican and most Canadian imports and 10% on goods from China,

Two courtroom defeats dealt a blow to President Donald Trump’s strategy, even as an appeals court reinstated existing tariffs.

The court ruling raises the real question about whether the wider so-called reciprocal tariffs due in July will ever come in to effect.