First, Andrew Chang explains how a trade war between Canada and the U.S. could impact the economy and consumers both north and south of the border. Then, the Bank of Canada's worst-case scenario amid a looming tariff war with the U.S.

Why did U.S. President Donald Trump impose 25 per cent tariffs on all imports of steel and aluminum again? Then, the Arctic is now a key geopolitical hotspot. Andrew Chang breaks down North America's shifting Arctic defence strategy.