OTTAWA (Reuters) -The Canadian team working on a trade deal with the United States could walk away from talks in the wake of a U.S. decision to impose a 35% tariff on some goods from Canada, an adviser to Prime Minister Mark Carney said on Friday.

A self-imposed deadline for a new US-Canada trade deal came and went on Friday. So what happens next for these two deeply entwined neighbours? Canada and the US have been locked in a tariff war for six months and,

Trump has justified tariffs on goods from Canada, the top U.S. export market, by accusing it of failing to stop the cross-border flow of fentanyl, even though U.S. government data shows Canada accounts for only 1% of the fentanyl that enters the United States.