Prime Minister Justin Trudeau, in a talk with business leaders, said Canada’s wealth of critical minerals are behind Mr. Trump’s comments about making its northern neighbor a U.S. state.

As Canada wrangles an epic, decades-long saga of who can fish for lobster, and when, emerging threats are heating up the conflict in Nova Scotia.

While many issues turned Canadians away from their prime minister, the high cost of groceries and homes has become a chief grievance.

Justin Trudeau announced Monday that he was also stepping down as leader of Canada’s Liberal Party. He will remain in both roles until a replacement is chosen.

Whoever replaces Mr. Trudeau as the leader of Canada’s Liberal Party will become the prime minister. Not long after they’ll face a general election, and the daunting challenge of keeping the job.