Like others, although this takes place within the context that we're living through at the moment, I believe that this is about power and this is about the British constitution. I don't believe that this is about Brexit, as much as many people would prefer that.

I agree with what many people here have said: this is both about the powers available to a Prime Minister, but it is also about the behaviour of the Prime Minister as well. I'm tempted to think that it takes an Old Etonian to tell a lie to Her Majesty the Queen; certainly we were taught better in Tredegar Comprehensive School and we wouldn't have thought of behaving in such a way. And it reflects poorly on the opposition here, on the Conservative Party in this country, that they're not prepared to stand with the constitution and the law of this country but to defend a rotten Prime Minister. That speaks volumes.

But we need to do more than simply condemn the poor behaviour of the current Prime Minister. He has attempted to subvert our constitution and he has attempted to subvert our democratic institutions. David Melding is absolutely right, prerogative powers must be subject to judicial review, but prerogative powers also have to be subject to democratic accountability and not simply judicial accountability.

First Minister, do you agree with me that, not only must the British Prime Minister resign when he returns to the United Kingdom overnight and before he faces the UK Parliament, but we need a constitution now that reflects the sovereignty of the Parliaments of these islands? The Parliaments of these islands. And what that means is not simply a constitutional convention, but an agreement with the United Kingdom Parliament, the Scottish Parliament and this Parliament of our right to sit unfettered by the Executive, to hold the Executive to account and to ensure that, as Parliaments, we're able to represent the people without fear and favour and that we cannot be bullied by a Prime Minister who believes he is above the law.