Carney warns of tough times ahead as Canada hits back at U.S. tariffs

As the trade war escalates and Canada's retaliatory tariffs against the U.S. take effect, Prime Minister Mark Carney warns it won't be easy. Former Canadian ambassador to the U.S. Kirsten Hillman weighs in on the moment and what it could take to get talks back on track. Plus, reaction from Conservative House leader Andrew Scheer and NDP Leader Avi Lewis.