President Donald Trump warned Canada and Mexico to expect tariffs of 25% on exports to the United States starting Saturday. Speaking to reporters in the Oval Office on Thursday, Trump said he was following through on his campaign threat to impose border taxes on America's neighbors immediately to the north and south of the continental United States over inflows of illegal migrants and drugs and large trade deficits.

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