Is David Miliband on his way out after telling colleagues "don't applaud my brother"?
My guess is that it's goodbye to David Miliband, who may go down in Labour folklore as one of the greatest leaders the party never had.
His tetchy comment to Harriet Harman as brother Ed deliverd his conference speech - telling her off for clapping during a key passage - suggests he's not 100 per cent behind the new regime.
Miliband senior took umbrage at Ms Harman for applauding as his brother said the Iraq War had been a mistake.
He told her: "You voted for it, why are you clapping?"
Fair point, but it sounds as if David isn't happy with Ed's opposition to the invasion of Iraq. In fact, David often looked annoyed when Ed expressed this opinion during the leadership election campaign, and it seems that his annoyance was genuine.
Tomorrow - Wednesday - nominations close for the Labour shadow cabinet.
David's team are telling anyone who will listen that he is staying on as an MP and there will be no by-election in his South Shields constituency.
But will it be as a member of his brother's Shadow Cabinet? That seems hard to imagine.