The Constitutional Debate Over the Notwithstanding Clause

Canada-U.S. trade negotiations go off the rails after an anti-tariff ad angers Trump. Parties accuse each other of trying to force an election over the budget. And was Alberta justified in using the notwithstanding clause to get teachers back to work? Rosemary Barton hosts Chantal Hébert, Althia Raj and Jason Markusoff.