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,

Tariff negotiations between the two top trading partners are on a different track from those the U.S. is pursuing with other nations. But Canada may not get a better outcome.

The U.S. just ended a decades-old tomato trade agreement with Mexico, and while prices could soon spike at grocery stores and restaurants across the country, one Stanislaus County farmer says not so fast.