Canada faces more U.S. trade war escalation

With Canada's $28 billion tit-for-tat counter-tariffs sparking further U.S. tariffs and outright bans on some Canadian products, the At Issue panel breaks down Canada's strategy, what it might do next, and what all the trade chaos means for politics and national unity. Rosemary Barton hosts Chantal Hébert, Andrew Coyne and Althia Raj.