This is the moment Speaker Michael Martin lost his job.
Tory MPs are incandescent that Martin called Dennis Skinner at the end of PMQs. He must have known what he would talk about. On many occasions he has refused to let Tory MPs make similar points, but he gave Skinner carte blanche. I've had various MPs fulminating to me this afternoon, including a couple who had always wanted to give him the benefit of the doubt in the past. One told me there was no way Tory MPs would stand for him remaining in post if they form a government after the next election.
And Brown may well come to rue his reply, where he said that the appropriate authorities should investigate. I suspect that there will be other calls for Mr Mandelson's relationships with Russian Oligarchs to receive further scrutiny. Expect some action in the European Parliament to that effect.