Members of six of Canada’s billionaire families have donated the legal maximum to Mark Carney's Liberal leadership campaign, according to an Investigative Journalism Foundation analysis of the first interim financial disclosures published by Elections Canada.

Carney raised $1.9 million overall, far more than any other leadership candidate. He is also dominating the polls and has 83 MPs supporting him compared to former finance minister Chrystia Freeland’s 26.