Canada is seeking to coordinate with the UK, EU and Mexico on US President Donald Trump's threatened tariffs, Foreign Minister Melanie Joly said Monday ahead of a trip to Washington. She told reporters in Ottawa she has been in contact with her Mexican counterpart and would reach out this week to British officials and representatives of the 27-nation European Union.

Trump, who returns to the White House Monday, has made sweeping threats of tariffs against US trading partners – including the EU, Canada, Mexico and China

The Trump administration is discussing a 10% punitive duty on Chinese imports. Trump said the EU also has troubling trade surpluses with the United States.

President Donald Trump has once again threatened the EU with duties, and European leaders are vowing to respond in kind.

Trump has shown a willingness to move swiftly on tariffs in recent days without allowing for drawn-out talks. On Sunday, Trump announced—and then backed off—a threat to impose

President Donald Trump's threats to impose punishing tariffs on Canada and Mexico may be part of a strategy to gain leverage ahead of new negotiations on a regional trade agreement, experts said.

Donald Trump is “very serious” about unleashing unilateral tariffs on neighbors Mexico and Canada without even giving them a chance to negotiate. Some of Trump’s closest advisors said the dramatic action could take place within days.