BBC Radio 4

"He did stab his brother in the back, that is absolutely clear," says Environment Secretary Liz Truss of Ed Miliband.

Her comments come after Defence Secretary Michael Fallon said Mr Miliband had "stabbed his own brother in the back" to lead Labour and was now "willing to stab the UK in the back" by doing a deal on Trident with the SNP "to become PM".

Ms Truss, pressed on Mr Fallon's remarks, said he was "right to highlight the character implications of Ed Miliband in government".

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Singing star Ronnie Carroll may have died at 80 - but thanks to a quirk of electoral law he'll still appear on the ballot paper in a seat where the majority is just 42. Read more., external

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BBC Radio 4

Liz Truss, Conservative environment secretary, is challenged on the World at One over the Conservatives' right-to-buy housing announcement. She says the party wants to give more people the benefit of home ownership. Right-to-buy has been "a massively successful policy" and we want to extend that to 1.3 million more families, she adds.

The Conservatives have also promised to fund the NHS in England by £8bn extra a year, which NHS bosses say is needed to sustain the system. Asked where the money will come from, Ms Truss doesn't answer, instead pointing to the government's "track record" of making the necessary reductions in government spending to invest in the health service.

"We've got the track record, Labour's track record is a letter saying we've got no money left."

BBC Radio 4

IFS director Paul Johnson is speaking to BBC Radio 4’s World at One programme about the Conservatives' election manifesto launch.

He said the prime minister confirmed that the Conservatives are looking for a budget surplus by 2018. To get to that, he adds, they will need “tens and tens of billions of pounds” of spending cuts or tax increases, “but we got no new detail whatever of what those might look like”.

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M. Scott, Newcastle:

BBC News Channel viewers can put questions to Liberal Democrat Chief Secretary to the Treasury Danny Alexander later. He'll be live in the studio with Huw Edwards at 17:30 BST, when the presenter will be getting answers about Lib Dem policies on behalf of viewers.

You can tweet questions to #BBCAskThis, or email video questions to YourPics@bbc.co.uk .

tweets, external : Very roughly - the Tory manifesto is around 31,000 words, the Labour manifesto about 20,000 words. This is a pretty useless fact.

Nick Robinson
Political editor

Image source, PA

This week of political cross-dressing goes on.

David Cameron tried to re-brand the Conservatives as the party of working people - the day after Ed Miliband claimed that Labour was the party of economic responsibility.

It is not just the language that has changed, it is the tone.

Read more from Nick.

Image source, PA

Nigel Farage, who’s been out and about in Kent today, says the right-to-buy initiative won’t do anything at all to guarantee homes go to British people. He says the Conservative manifesto as a whole was a “re-hash of so much of what was said in 2010” – and voices concern that there was “no commitment to Britain’s defence whatsoever”.

tweets, external: looks like @ed_miliband, external will be literally drummed out of Leicester at end of ethnic minority manifesto launch

Leanne Wood doesn’t shy away from her very left-leaning brand of nationalism, declaring that a Welsh socialist republic would be “fantastic”. She admits on the Daily Politics there’s a long way to go, though, and says it’s hard to contest an election when she hasn’t got the chance of becoming prime minister. Ms Wood says she’s hoping to lead a party with five MPs after the general election – that would count as a success because it would be Plaid’s best-ever haul. It would be a net increase of two from their 2010 performance.

Here are two rather contrasting takes from the Conservatives and Labour on today’s inflation figures, which remained at the record low of 0% in March:

BBC News website readers react to Conservative plans to extend the right-to-buy scheme for housing association tenants.

Maxine Barton emails: How is this fair? Having had subsidised rent now the property can be bought with up to 70% discount! What about young people who can't get a local authority property and have to seek out private rentals? What help will they get to buy their own property?

Kirsty Mardlin in Hertfordshire writes: I can't believe with the existing affordable housing crisis that a Tory government want to sell off the few houses left by opening up the right to buy to housing associations tenants. How about helping those of us trapped paying three times more than those in social housing in the private rent sector by providing us a 35% deposit on our houses. We will be forced to move out of our area and further north soon as rent prices are rocketing.

Babs Taylor emails: Surely if they can afford an expensive property within the social housing stock, these persons can afford to live in either private housing sector or take advantage of other schemes such as shared ownership. There are houses purchased not for occupants but for the greedy. Should social housing not focus on the needy?

Christine Holland writes: Right to buy will have long term, detrimental effects and costs for the country. They are buying votes. My daughter can't afford a home, why on earth should my taxes help someone already in a home to buy one?

Rose Knight emails: If the Conservatives win the election, I would probably have to move out of the council property I live in as it's worth quite a lot. I am financially unable to purchase my home so what do I benefit from this? Having to moving into a smaller property!! Doesn't make sense. It's all about robbing Peter to pay Paul!