The moves fulfill certain campaign promises but also have roiled stock markets and supply chains, while straining relations with the country’s North American neighbors.

President Donald Trump has taken executive action to impose or threaten new tariffs on imports from Canada, Mexico and China. The moves fulfill certain campaign promises but also have roiled stock markets and supply chains,

Tariffs on goods imported from the U.S.'s three largest trade partners could upend industries from autos to consumer goods to energy. Executives have been able to deflect question

Follow the latest news on the tariffs and other Trump administration moves. Leaders for Canada, Mexico, and China, including Justin Trudeau, respond after President Donald Trump imposes tariffs.