The Prime Minister--and I hope the current Prime Minister will forgive me for saying this--is a creature of convention. The Prime Minister is not really, under our formal constitutional structure, a recognized actor, but he's very much an actor in the real world of politics. And the genius of our system is that it combines the formal world of the Constitution Act of 1867 with the evolution of our political framework and the values that accompany that framework, and that's really done through constitutional convention. So when the Prime Minister says he's going to call an election, he's really meaning, in legal terms, he will go to the Governor General and advise the Governor General that he recommends it. In law, the decision is with the Governor General, so the Governor General holds the power on behalf of the Crown. One could just as easily say it's with the Crown as with the Governor General. There are several sources in our Constitution for this power to dissolve, but they're all legal powers that are retained by the Crown, and of course the Prime Minister is a minister of the Crown, so an advisor to the Crown.
I don't know if there's anything I can add to that in an encapsulation. It is something that should be explored with nuance, of course, but as the minister has indicated, attempting to translate into rules of law flexible rules of constitutional convention that evolve in the political sphere has its own downside in terms of the role of the courts, justiciability, turning what are appropriately political roles into legal roles. So we may not want the rigidity.