Frontrunners include Chrystia Freeland and Mark Carney, who are making the case they can guide Canada through domestic and international issues. At the top of the list: mounting trade tensions with the United States.

Canada's Liberal Party will on Sunday announce Prime Minister Justin Trudeau's successor as both party chief and head of the country's government in the midst of a trade war with the United States that could cripple the Canadian economy.

Canada's Liberal Party elects a new leader this weekend to replace Justin Trudeau as prime minister and take charge of confronting the threats posed by US President Donald Trump.

Liberal party members will select a successor to Trudeau, who earlier this year announced his resignation facing deep unpopularity, on March 9.