Charles Michel lost the support of the biggest party in his coalition last week in protest at his support of a U.N. pact to foster cooperation over the world's 21 million refugees.

Over the weekend, protests took place across several Canadian cities, including Toronto, Winnipeg, Calgary, Halifax, Edmonton and Saskatoon.

Louise Arbour, the UN secretary-genera's special representative for international migration, is taking aim at what she calls the rampant misinformation surrounding the Global Compact for Migration.