Canada's new Prime Minister is expected to tout his economic expertise as he enters the job. 

Mark Carney has served as Governor of Canada's and England's central banks. 

He'll lead the Liberal Party into this year's general election. 

Canadian correspondent Rachel Aiello says it's important for Carney to sell himself as a numbers man. 

"At this current moment, with the ongoing trade war with the United States, the state of the Canadian economy and who is best placed to manage it is going to be one of the biggest ballot questions in our upcoming federal election."

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