There will be blood. And fireworks.

CoffeeHouse thinks Brown is in danger of scoring a point if he can out-bark Cameron over exes on Monday.

There is muttering that Labour sinners will be de-selected. Oh, will they, indeed?

Brown may have his work cut out. Shahid Malik's constituency committee were all on their hind legs on TV last night declaring solidarity with their man. 'Stand by your man' was playing in the background.

The remoteness of Galactic Headquarters from local Party workers' reality is legendary - but very real.The response to Brown's diktats (and this applies to Cameron, too) will vary from place to place, MP to MP.

Party workers who despise their sitting MP (plenty of those in all parties) will be delighted if he or she is handed the Black Spot by party chiefs.

There are others, though, who actually like their MP and whose default response to outside control is Go fuck yourself. They will stuff the Black Spot into a small firework and let it off in the general direction of Westminster.

In others, there will be civil war. There is nothing so vicious as infighting in constituency political committees, regardless of party.

Everywhere, local soundings will be taken as to the voters' feelings about the incumbent, before a decision is made. Success at the forthcoming general election is the key, and 'round 'ere we know better what our chances are than those ponces up there on the effing Battlestar'.

Leaders propose, local parties dispose. Mostly. Sometimes. We'll see.

This isn't over by a long chalk.