Isabel Hardman

In the last few minutes, Chuka Umunna has confirmed that he will be standing for the Labour leadership. The Streatham MP made the announcement in a video on his Facebook page while in Swindon - presumably to start undoing any claims his rivals will make that he is a candidate who only appeals to Londoners. He said: ‘I’m pleased today to be announcing that I will be standing for the leadership of the party. I think we can and we should be winning in seats like in Swindon. North, South, East, West we can absolutely do it as a party.’ Umunna added that he didn’t have much truck with the idea that Labour now needed to take 10 years to rebuild.

David Miliband has just given a brutal interview to BBC News in which he took a few more words to say ‘I told you so’ about the way his brother led the Labour party. Some of the worst lines were about their relationship, with David saying of Ed that ‘we remain in touch’, as someone might talk of a former colleague who they occasionally email, and that the two ‘remain brothers for life and that’s something that has to be kept’. It’s one step away from saying ‘you can choose your friends, but you can’t choose your family’. Politics aside, there is something horrible about watching the often beautiful relationship between siblings being trashed by both men.

Lord Mandelson and his protégé Chuka Umunna ended up sitting next to one another on the Marr sofa at the end of the programme. Both had spent their interviews setting out what Labour had been doing wrong for the past five years, though Mandelson was markedly more savage than Umunna. The Labour peeer was particularly keen to make the point that New Labour had been too quickly discarded in favour of an ‘experiment’. He said that ‘the awful, shocking thing about this election is Labour could have won it’, adding: ‘The reason we lost it and lost it so badly is in 2010 we discarded New Labour, rather than revitalising it and re-energising it and making it relevant for the new times, the new policy challenges that we faced. That was a terrible mistake.

Inevitably, the Sunday papers are full of pieces by Labour leadership hopefuls dissecting why their party did so badly and offering their initial prescriptions. They are actually all rather slow out of the blocks as David Lammy said this morning that ‘certainly for people like me it’s absolutely time to step up into a leadership role’. So in the Observer we have Chuka Umunna, positioning himself, unsurprisingly, as the Blairite candidate. He says the party had ‘too little to say to the majority of people in the middle’ and that ‘we need a different, big-tent approach’ (referencing the master).

So there could be a Labour leadership contest coming up. Who might have a pop? Chuka Umunna: Some members of staff in Ed Miliband’s team had concluded Chuka Umunna was worth giving serious assistance to, having concluded that their current boss was a goner a while ago. The smooth Blairite Shadow Business Secretary has also been very good at charming colleagues in the party, taking time to have coffee with those who Miliband has ignored. He believes he has the support of the party’s New Labour wing, mostly represented by Progress. Andy Burnham: If Umunna has the Blairites sewn up, Burnham has the other side of the party. He has clearly positioned himself as a man of the left, a populist figure who sends the Labour conference to raptures.

So now the wait for results begins. Talking to Tories who have been on the ground today, I’ve been struck by how dissatisfied so many of them were with the get out the vote operation that their party ran. The VoteSource database crashed for an hour, which would have been fine on any other day, but it meant that canvassers didn’t know which doors they should be knocking on. Labour has, as expected, flooded key seats with activists. But campaigners were genuinely surprised by quite how many they saw on the doorstep. Many reported being outnumbered three to one by Labourites who not only knew whose door to knock on, but had the time and manpower to go back and knock on the doors that weren’t answered first time round.

Tonight’s a nervous night if you’re an candidate for re-election in a marginal seat (or in Scotland). You might have an impressive get-out-the-vote operation, or you might have spent the past five years wheeling and dealing in Westminster on behalf of your constituents so that you have a strong personal brand, but it might be that voters just aren’t that into your party. Or, in spite of your best efforts, you. A good number of the Tory candidates in marginals who I spoke to today feel as though the race is too tight for them to have any idea whether they will be back in Westminster next week. The same goes for Labour and Lib Dems in Scotland, but for slightly different reasons.

As well as trying to prepare voters for what may happen after 8 May, David Cameron needs to make sure he has his party on board for the ride after the election, too. The 1922 Committee will need to approve a second coalition, but the hope in the Cameron camp is that this will be made easier by making the approval a show of hands from Tory MPs, rather than the secret ballot 1922 Committee chair Graham Brady wants. Two interesting points that loyalists advance is that the Lib Dems approved the 2010 Coalition with a show of hands and that many prominent 1922 Committee Executive members were against the plan to elect the Speaker by secret ballot that the government tried to introduce rather sneakily in its last few hours.

One of Britain’s great traditions is the open garden afternoon: an opportunity for folk revelling in being both middle-aged and nosy (like me) to wander around other people’s plots and peer at what they’ve planted while scoffing large slices of cake. The National Gardens Scheme and Open Squares are two of the most popular, and while they do allow people to see the true beauty of someone else’s well-maintained dahlia bed or snowdrop collection, they also help us indulge in that also very British tradition of pointing at the strange things people put in their back yards.