Bloc Quebecois Leader Yves-Francois Blanchet, left to right, then Green Party Leader Annamie Paul, then Liberal Leader Justin Trudeau, NDP Leader Jagmeet Singh, and then Conservative Leader Erin O'Toole take part in the federal election English-language Leaders debate in Gatineau, Que., on Thursday, Sept. 9, 2021.

The leaders of the main federal political parties will be invited to a face off in mid-April — if they meet certain criteria, announced the Leaders' Debates Commission Monday.