"I think the fact that we had six leaders participating made for a pretty busy stage," he said.
The NDP leader is calling on the Leaders’ Debates Commission to reconsider its decision.
The People's Party of Canada leader has been invited to attend on Oct. 7 and 10.
HuffPost Canada is the debates' first digital-only producer.
There's a lot about the role that we don't know.
His disclosure comes amid scrutiny of Adrienne Clarkson's expenses.
The government is establishing an independent commission.
He officially left the vice-regal position on Oct. 2 when Julie Payette was sworn in.
David Johnston also said the monarchy is important for Canada's stability.