Canada’s Liberal Party picks its new leader on Sunday, with a former central banker and political rookie likely to succeed Prime Minister Justin Trudeau as the country faces challenges from US President Donald Trump.

Mark Carney, who formerly served as governor of the Bank of Canada and the Bank of England, is the front-runner to become Liberal leader when party members vote later Sunday.

Chrystia Freeland, Trudeau’s former deputy prime minister, is the second key rival. She held numerous top cabinet roles in the Liberal administration that was initially elected in 2015.

Whoever wins would succeed Trudeau as prime minister, but they will shortly face an election in which the opposing Conservative Party is presently polling as the slight favorite.

Carney has received support from most of Trudeau’s cabinet and more than half of the Liberals in parliament.

A Freeland victory is still conceivable, but it would be a surprise for the party as it prepares for an election that must be conducted by October but might take place in the next weeks.

Both Freeland and Carney have claimed that they are the greatest candidates to protect Canada from Trump’s assaults.

The US president has regularly mentioned annexing Canada and has thrown bilateral commerce, the lifeblood of the Canadian economy, into disarray with dizzying tariff acts that have swung in multiple ways since he took office.