Blair Unbound by Anthony Seldon

He went into the garden and began muttering ‘Iraq’ and ‘it’s all my fault’ - source

"In the end Blair would always support the president. I found this very surprising. I never really understood why Blair seemed to be in such harmony with Bush. I thought, well, the Brits haven't been attacked on 9/11. How did he reach the point that he sees Saddam as such a threat? Jack and I would get him all pumped up about an issue. And he'd be ready to say, 'Look here, George'. But as soon as he saw the president he would lose all his steam." - Colin Powell - source