Trump has vowed punishing tariffs on Mexico, Canada and China, which are Texas’ biggest international trading partners.

The stakes are particularly high for Texas and other border states, where trade with Mexico is worth hundreds of billions of dollars a year.

The new U.S. border czar is expected to meet with Canada's top public safety official on Friday just hours before President Donald Trump has promised to level new tariffs on Canada unless it helps deal with the flow of migrants and fentanyl across the border,

U.S. President Donald Trump on Thursday said he would soon decide whether to exclude Canadian and Mexican oil imports from the 25% tariffs that he has vowed to impose on Saturday on the countries' products.

Around 90% of auto exports from both Mexico and Canada go to the U.S., according to the Mexican Automotive Manufacturers' Association (AMIA) and the Canadian Vehicle Manufacturers' Association. German automakers,

U.S. President Donald Trump on Thursday said he would likely decide by the end of the day whether to put a 25% tariff on imports of Mexican and Canadian oil that would take effect on Feb 1. "We may or may not.