Former Conservative MP Lisa Raitt, who is co-organizing the race, said the rules for the race remain a work in progress, but the committee setting them continues to meet frequently.

About 20 people from across the country gathered to present O'Toole with a plan to win the upcoming Tory leadership contest following Andrew Scheer's resignation.

McCallum recently told the South China Morning Post that he had warned China that more harmful actions against Canada would help the Conservative party get elected.