President Trump’s tariffs on Canada, China and Mexico could upend U.S. trade. These nine charts show what’s at stake, what comes next and why it matters.

Trump calls it unfair that some countries apply higher tariffs to specific American goods than the U.S. applies back. A new executive order seeks to change that.

In an escalation of his trade war, President Donald Trump moved to put tariffs on nations that levy taxes and fees that hurt U.S. businesses.