Mark Carney is set to become Canada’s prime minister when the results of his party’s leadership election are announced on Sunday evening.

The race in the Liberal Party is between the former Bank of England governor, who does not have a seat in the Canadian House of Commons, and Chrystia Freeland, the minister who resigned to bring down Justin Trudeau’s government.

The new party leader will, by law, have to hold a general election by October, and they are likely to lose to the Conservatives.

However, the Liberal Party has enjoyed a boost in popularity since Donald Trump began threatening tariffs and annexation.

Although Mr Carney has long been considered a technocrat who favours fiscal discipline, he has recently launched a number of colourful attacks on Mr Trump, who has mulled absorbing Canada as the “51st state”.

In comments first reported by CBC, he compared the US president to Voldemort, the Harry Potter villain, and attacked his “ridiculous, insulting” annexation comments.

When Mr Trump imposed 25 per cent tariffs on Canada last month, Mr Carney labelled the move “illegal” and vowed he would not “bow down to a bully”.