OTTAWA — Two weeks before proposed 50% tariffs take effect, Canadian Prime Minister Mark Carney turned US President Donald Trump’s rhetoric back on him, calling trade talks with the United States “nasty.”

Prime Minister Mark Carney said Canada’s tone toward the United States is already “quite firm” and insisted trade negotiations with Washington remain “constructive” as an Aug. 19…

Prime Minister Mark Carney says it's fair to describe Canada's approach to trade negotiations with the United States as "nasty," after President Donald Trump used that word to…