Having just vigorously denied that we have a "head of state", I would like to now beat up on "de facto". Feel free to chime in, Piddingworth.
I know, Madam, that you are fond of insisting that "As the representative of the Crown in Canada, the Governor General carries out the duties of head of state, and therefore is de facto head of state."
But I'm afraid that is not what Letters Patent 1947, in fact, state or intend. So far as I can tell, you are lawfully authorized and empowered to carry out certain duties as representative of the Queen in right of Canada, that is it. It is simply a delegation of duties and responsibilities to the governor general, not a transfer of the monarch's authority or sovereignty. De jure or de facto nothing.
Madam, "de facto head of state" would mean that "for all intents and purposes", you are, in practice or actuality, head of state, as you have deliberately pretended in recent days, weeks, months and years. By doing so, you and your modern predecessors have thus managed to reduce Her Majesty — the Queen of Canada, after all — to a mere technicality.
Ah, I see. Her Majesty, that bothersome nuisance, may technically be the Queen, but really, effectively, truthfully — loyally! — it is the Governor General. Honestly, now.
Let us not split hairs, Madam, look at what the papers are saying about your office. The Ottawa Citizen on your self-promotion:
Carrying out the Queen's duties -- on the Queen's behalf, and in her absence -- does not turn the Governor General into a Queen herself. It's true that the Governor General performs more duties now than did governors general in the past, but that doesn't change the fact that she derives her power from the Crown. There can only be one head of state. Canada's Constitution Act is pretty clear about who that is: The Queen.It is embarrassing that the prime minister as head of government should feel the need to clarify such a fundamental constitutional fact as: "The Governor General represents the Crown in Canada." As the editorial begins, "this is akin to issuing a statement reminding everyone that the sky is blue. The Queen's position as head of state is fact."
Not de facto fact, your Excellency, fact fact.
I have the honour to be Her Majesty's humble and obedient servant.