(FILES) US President Donald Trump (R) welcomes Canadian Prime Minister Justin Trudeau at the White House in Washington, DC, on October 11, 2017. Canada was scrambling on November 26, 2024, to blunt the impact of US President-elect Donald Trump's threat to implement steep tariffs once he takes office, as experts warned of a potentially "catastrophic" hit to the Canadian economy. (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images)