So now it's the Lib Dems' turn to present their prospectus for the country. And,
in some respects, I expect they'll want a fairly uneventful day. They have, after all, endured the most topsy-turvy campaign of the three main parties so far. Brown has given us no
more, and no less, than what we expected. The Tories have been riding the crest of a national insurance wave. But the Lib Dems have bounced around from the highs of Nick Clegg's
performance on Newsnight
to the lows of their misleading VAT poster
, from their continuing Labservative attacks
to Ed Balls describing their schools policy as "creditable"
on Sky this morning.
Make no mistake: much of this topsy-turviness is down to the Lib Dems' own confusions on policy and ideology – confusions which have been exposed as the campaign has worn on. But they also have some of the most instantly
attractive doorstep policies in British politics today – including their pledge to make the first £10,000 of income tax-free, and
new measures to increase the pay of the armed forces. Their task today will be to make those cut through to the public, while also convincing us that they've got their background sums
right. Much easier said, of course, than done.