Canada weighs its trade options, Alberta referendum concerns Treaty 6 First Nations, Monarch population grows in the Prairies, and more

Political pressure is mounting on Prime Minister Mark Carney as sweeping U.S. tariffs take hold on billions of dollars worth of Canadian goods. Trade talks broke down on Friday, and now Ottawa must weigh how best to cushion the economic blow - and how to retaliate strategically against Washington. We'll have full coverage of the renewed Canada/U.S. trade tensions - with reaction from U.S. officials, business leaders, and Canadians across the country.Also: Today marks 150 years of Treaty 6. Its an agreement signed between the British Crown and more than 50 First Nations. It gave those First Nations rights to health, education, and use of the land in portions of what is now Saskatchewan and Alberta. But there is growing concern that the threat of Alberta separation -- could put the Treaty at risk. And: Twice a year, millions of monarch butterflies make the long voyage between Canada, the U-S and Mexico. Habitat loss has led to fewer and fewer monarchs taking part in that semi-yearly migration. But the endangered species has seen a population rebound on the Praries. You'll hear what's causing it.Plus: Mental health challenges among Indigenous boys and young men, and more.