Although the to and fro of furious argument inside Number Ten continues as I write, The Slog’s usually reliable Mole is telling us that New Labour’s leadership “has somehow convinced itself that the letter of the Constitution is the one they should follow”.

UPDATE: We understand that the inner Labour Cabinet have contacted both the LibDems and SNP

Alarmingly, the two most polar opposites Mandelson and Balls appear to be the ones desperate to puff up Gordon Brown about this option. And Mr Brown needs very little puffing to get his ego the size of a Montgolfier balloon.

Stay tuned