Blair likely to defend Iraq judgement
We are not judges. It is not a trial.
So say the members of the Iraq Inquiry.
That is not how it will feel to Tony Blair, who was smuggled into the QEII Conference Centre by the Metropolitan Police early this morning.
The inquiry to date has heard from his former officials and ministerial colleagues who have painted a picture that this was his war and his alone. He will want to remind people that the government, the opposition and, yes, public opinion backed him.
He will acknowledge that there are lessons to be learned, but defend the judgement he took and stands by still - that Saddam Hussein was a threat to the world who had to be disarmed, if necessary by force.
On regime change, he is likely to argue that there was a moral case to remove Saddam, but that his government's policy was disarmament.
On those missing weapons of mass destruction, he may point to the final report of the Iraq Survey Group, which said that Saddam had the capacity and the intent to build WMD if not the weapons themselves.
On the terrible loss of life, his friends point out that there are those who are alive now thanks to the war - because, they claim, infant mortality rates have improved since Saddam was toppled.
None of this will convince opponents of the war. It is unlikely to sway those who once backed it and now regret it.
Tony Blair's aim is likely to be rather different. He will want people to disbelieve the conspiracy theories about secret promises to George Bush "signed in blood", and the claims that he lied about intelligence. He wants the British public to accept that he took a political judgement which they might disagree with but which was just that: a judgement he discussed and debated openly, based on what he knew and feared at the time. Even that will be a mightily difficult task.
Update 0927: Tony Blar will not be making an opening statement to the inquiry this morning.
I will not be blogging live during his evidence, since I have the privilege of being in the Inquiry Room, where no electronic equipment is permitted. There is a different quality about sharing a room with the witness and the inquisitors which I do not wish to miss. As I've mentioned before, my colleague Laura Kuenssberg is micro-blogging; you can find her at @BBCLauraK, and you can get all the BBC's coverage at our live event page.