Boulton warns Cam - don't mess with the rules

That's the manifestos out of the way - except the SNP's next week - so everyone is beginning to focus on tomorrow night's leaders's debate.

Brown and Cameron have been playing down expectations - Brown admitting he's no good on presentation and that he could have done more on banking regulation. Cameron is worried that he might look boring and fears the debates might be "slow and sluggish".

That brought quite a riposte from Sky's Adam Boulton, who I didn't realise blogged quite as much as he does because the Sky site only show the top three paragraphs of each lengthy entry.

Click through here for the full Boulton treatment in which he warns David Cameron not to mess with the rules that the parties themselves insisted in putting in place.