Foreign Affairs Minister Mélanie Joly has endorsed Mark Carney in the race for the leadership of the Liberal Party of Canada, arguing the former governor of the Bank of Canada has a "clear vision" for the future.

Former cabinet ministers Chrystia Freeland and Karina Gould officially launch their bids for Liberal leadership.

Joly's endorsement comes as ex-finance minister Chrystia Freeland begins her campaign Sunday to replace Justin Trudeau, who remains prime minister until a new Liberal Party leader is chosen on March 9.

Liberal leadership hopeful Mark Carney has secured the endorsements of four more current and former cabinet ministers.

The former central banker has already secured the backing of the country's foreign, energy, environment, transport and labour ministers The senior ranks of Prime Minister Justin Trudeau's cabinet have made their choice on who they believe should replace him as Canada's prime minister - and they are throwing their weight behind Mark Carney.