Mark Carney takes office as prime minister of Canada

Mark Carney took office as prime minister of Canada on 14 March 2025 after Governor General Mary Simon administered the oath and swore in his cabinet. He succeeded Justin Trudeau, who had announced his resignation and remained in office until the Liberal Party chose a new leader.

Carney had governed the Bank of Canada and Bank of England but had never previously held elected office. Canada's parliamentary system allows the leader able to command confidence in the House of Commons to serve as prime minister without a separate nationwide presidential vote.

He won the Liberal leadership contest and immediately faced trade confrontation with the United States and an approaching general election. Leadership support within one party did not itself confer a fresh parliamentary mandate from voters.

Carney reduced the cabinet and announced priorities on economic security, housing and the US relationship. Policy statements and ministerial appointments are not evidence that promised outcomes were already achieved. Parliament's confidence rules and election law continued to constrain the government.

The governor general's record establishes accession to office. This item is separate from the Liberal Party's later election result in April. It records a constitutional transition through party leadership and Crown appointment, while explaining why Carney was legitimately prime minister before winning a parliamentary seat.

The new prime minister advised dissolution of Parliament soon afterward, shifting the government into a campaign and caretaker context. That later advice did not invalidate the authority exercised between swearing-in and the election writ.