The EU has warned of countermeasures in response to US tariffs, while President Trump expressed openness to dialogue.

Those tariffs are set to take effect August 1, unless either party inks a trade deal or takes other measures that cause the president to reverse course.

Not long after President Trump stated on a social media message that the United States will increase tariff rates on Canada, effective, August 1, over the weekend he said that matching 30% tariffs ...