Poilievre's pitch on trade and allies

Prime Minister Mark Carney rides the line between keeping Canada back from the Iran war and supporting the U.S. mission, but won't 'categorically' rule out involvement. Pierre Poilievre tours Europe. And, what's behind the Liberals' growing lead in polls? Rosemary Barton hosts Chantal Hébert, Andrew Coyne and Althia Raj.