Presented by Emily Maitlis
On the train back from Manchester this morning I didn't meet one person who had watched the TV debate. But I met several people who told me Nick Clegg had won. And so, the story has been written. Twitter now has its own hashtag stolen from the Gordon Brown repetition #iagreewithnick.
Tonight we will be asking how the emergence of Nick Clegg as the debating frontrunner could change the electoral landscape and change the parties' tactics when it comes to campaigning.
Will the Tories alter their attack in the Lib Dem marginals of the South West? Will Europe suddenly enter the campaign as a subject to, well, literally, put clear blue water between them?
And what about Labour - is a strong Lib Dem presence a help or a hindrance?
Michael Crick is in the 3-way marginal of Bristol North West, in a golf club no less. Expect lots of swing metaphors there then.
Last night history was also made in the Labour marginal of Crawley, where people living close to Gatwick airport finally got a good night's sleep. Psephologists are working, as I write, to assess how many other airports lie in Labour marginals where voters are perhaps feeling better disposed to the government after an 8 hour, noise-free kip.
Here on Newsnight, however, we're taking a rather more scientific approach. Susan Watts will assess what the impact of all that ash could be for the economy, the environment and our health.
So join us at 10.30pm on BBC 2 tonight for all that.
And don't forget to join Jeremy on Saturday evening at 7.50pm on the same side for a special weekend Newsnight.
He'll be joined by Ed Vasey, Tessa Jowell and Chris Huhne to discuss the events of the day. Comedian Mark Watson, Rebecca Front of The Thick of It, and Jesse Armstrong the co-writer of In The Loop will also be there.
And they'll have a special report from Buckingham where UKIP candidate Nigel Farage is hoping to unseat John Bercow, the Commons Speaker, at the general election.
Emily
Click here to read Emily's latest Virtually There column where she gives her slant on the stories that have been circulating on the web this week..
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