Mark Carney, Canada’s elected prime minister and head of the country’s Liberal Party, is going to the polls in the hope of re-election. In recent months, the former governor of the UK’s Bank of England has to fight a war on two fronts.

Canadians will vote for a candidate from one of the political parties in their federal “riding,” or district. Whichever candidate gets the most votes in a riding will become a Member of Parliament (MP) in the House of Commons, and the party with the most MPs wins the election.

In their backgrounds and political styles, Canadian election front-runners Mark Carney and Pierre Poilievre are a study in contrasts.