Here's avideoof David Cameron explaining his West Ham/Aston Villa gaffe.

When he was first elected to Parliament in 2001, David Cameron said he did not follow football, telling the House of Commons in a debate on hooliganism that year: "Many of those who have spoken in the debate or have written about the subject are either lawyers or football fans, but I have to confess that I am neither."

The first mentions in the national press of Mr Cameron's liking for the club came after he was elected Tory leader in 2005.

He was reported in 2006 to have written on his blog that he "half-heartedly" supported Villa and could name only three of their players.

His uncle Sir William Dugdale, who died last year, was the club's chairman from 1975 to 1982.

A survey carried out by pollsters YouGov for the Times suggests Labour's campaign is having more effect on voters than the Conservatives'.

Some 17% of those questioned said they had seen something in recent days to make them feel more positive about Labour, while 17% said they had seen something negative.

When asked about the Tories, 13% said they had seen something to make them more positive about the party and 25% negative.

Asked who was running the best campaign, 26% of the 1,094 people questioned on 24 April named the Scottish National Party, 17% Labour, 14% Conservatives, 9% Ukip and just 2% the Liberal Democrats and Greens.

SNP Leader Nicola Sturgeon has joined female SNP activists and actor and campaigner Elaine Smith in Glasgow to launch the SNP’s Women’s Pledge, the SNP says, external . The SNP wants to increase free childcare, raise the minimum wage, end zero hours contracts, end the gender pay gap and is calling for a 50:50 gender balance on all boards by 2020.

Image source, Reuters

The Conservatives could seize back the Kent constituency of Rochester and Strood, which it lost to UKIP following the defection of MP Mark Reckless (pictured right) last year, according to polling for Conservative peer Lord Ashcroft. The poll found a three-point lead for the Conservatives in the formerly safe seat, which Mr Reckless won for UKIP in a by-election last November.

BBC Radio 4

The long-term Scottish Green picture on immigration is ultimately to invest in "the safety and long term prosperity of those countries" that people are fleeing from, say Patrick Harvie, co-convener of the Scottish Greens. "Some degree of immigration system is necessary," he says, including an application process for asylum.

Having just given his speech about his vision for Britain in 2020. David Cameron now looks sombre as he lays his wreath in remembrance of those who lost their lives fighting in Gallipoli.

There will be a lull in the campaigning for the next few hours as the leaders of some of the main parties come together to pay their respects to fallen soldiers from the battle of Gallipoli. It started with a minute's silence.

The ceremony is being held to mark 100 years since the battle, which was one of the bloodiest of World War One.

How do you do that? The prime minister has talked of his love of Aston Villa.

He has dressed in the claret and blue strip of Aston Villa while out running.

So how did he, in the midst of a celebration of all the different national teams that you can support in multi-ethnic Britain, proclaim his support for West Ham?

The colours are about the same but that’s about it.

To govern is to choose, as the PM has remarked before. So, which was it, I asked him, Villa or West Ham?

"A brain-fade" said the PM, rushing back in to the arms of Villa, obviously more than a little embarrassed that his football street-cred had just rushed down the toilet.

And then, offstage, he gave himself a good kicking, joining the football fans on Twitter who were doing the very same thing.

The Green Party is going to launch its campaign bus on Tuesday from Bristol West.

The bus, which was used in 2014, runs on chip fat.

At the 2010 election the Lib Dems had 48% of the vote in the Bristol West constituency - but the Greens have said they have a chance of winning the seat.

Ed Miliband took questions from reporters at the end of his speech. Iain Watson from the BBC says the Lib Dems have accused Labour of "rank hypocrisy" over the NHS because the last Labour government paid private providers for health services. Ed Miliband responds that there is "a huge difference" between what happened under a Labour government which "used the private sector to supplement the NHS and bring down waiting lists" rather than this government's policies "leading to the wholesale privatisation of the NHS".

Mid-speech Mr Cameron declared he wanted more people to support West Ham, even though he is a well-known supporter of Aston Villa.

Picked up on the confusion by the BBC's Jonny Dymond he said: "I had what Natalie [Bennett leader of the Green Party] would describe as a brain fade. I'm a Villa fan I don't know what happened to me I must have been overcome with something this morning, but there we are, these things sometimes happen when you're on the stump."

He then said that voting Liberal Democrat is like the film Forrest Gump.

"You don't know what you're going to get. They're saying they could be just as likely to support Labour as they would the Conservatives."

Ed Miliband rounds off his speech to party activists in Stevenage with a reminder that it's important for Labour to win the constuency. "This is going to be a really close election. It could come down to a few hundred votes in a few dozen constituencies - and Stevenage is one of those constituencies." He ends with a quip to the Steveage campaigners: "If you've got any DIY that needs doing in the next 12 days, put it off 'til 8 May. Nights out, birthday parties, family weddings: I'm afraid they're all cancelled," before praising their hard work.

David Cameron closed his speech in south London by saying he wanted Britain to become the "opportunity country of the world, where you can go as far as your talents will take you."