Canada’s major party leaders fired up dueling tax relief promises as the federal campaign rolled out amid the icy threat of Donald Trump’s tariff war.

Canada's main federal leaders are kicking off the election campaign by invoking U.S. President Donald Trump's trade war and promising financial relief for Canadians affected by his past and future tariffs.

Liberal Leader Mark Carney promised a one per cent cut to the lowest income tax bracket and “big change” after a decade of Liberal reign moments after requesting Governor General Mary Simon dissolve Parliament,