President Trump signed an order Tuesday doubling tariffs to 50% on steel and aluminum imports — drawing swift criticism from officials in neighboring Canada and Mexico. Why it matters: Trump's order said the increased tariffs that took effect early Wednesday "will more effectively counter" countries that "offload low-priced,

The increase in U.S. metals tariffs applies to all trading partners except Britain, the only country so far to strike a preliminary trade agreement with America during a 90-day pause on a wider array of Trump tariffs.