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,

This is assuming the government doesn’t find a way to make the situation worse, writes columnist James Mackintosh.

The U.S. economy shrank at a 0.2% annual pace from January through March, the first drop in three years, as President Donald Trump’s trade wars disrupted business, the government said Thursday in a slight upgrade of its initial estimate.