Raising the political stakes for Alberta's separation vote this fall, Prime Minister Mark Carney insisted Thursday that the referendum is "real" and could derail national efforts to position Canada as

Prime Minister Mark Carney warned Thursday that "years of uncertainty" could flow from Alberta's upcoming referendum.

Raising the political stakes for Alberta's separation vote this fall, Prime Minister Mark Carney insisted Thursday that the referendum is "real" and could derail national efforts…

The prime minister is asking Albertans to consider what a prolonged separation drama will do to their province and the country, Susan Delacourt writes.