Before we sign off for the night, here's a round-up of the day's election news:

The SNP leader Nicola Sturgeon has launched the party's manifesto promising to represent the interests of voters across the UK and to fight for public spending increases

The prospect of a Labour government propped up by the SNP is a "match made in hell", David Cameron has warned

But a former Conservative Scottish Secretary, Lord Forsyth, said the Tories were playing a "dangerous game" in their handling of the SNP

Labour accused the Conservatives of a " double deceit " over the NHS and promised to launch an emergency recruitment drive for nurses

UKIP has said the BBC should be " cut back to the bone "

Nick Clegg said the Liberal Democrats were the "party of education". Campaiging in the south west of England, he said it would be a "good thing" to run the Department for Education on his party's terms

Sinn Fein launched its manifesto, saying it would seek an extra £1.5bn for Northern Ireland in negotiations with an incoming government.

And, the deadline for registering to vote in the general election is midnight - there's just a few minutes left.....

tweets, external an amusing photograph...

Responding to news of Labour's pledge to launch an emergency recruitment drive to get 1,000 more nurses, the Conservative Party said the government had inherited "a nursing crisis with the scandal of short-staffed wards at Mid Staffs and other failing hospitals".

A Conservative spokesman said:

Newsnight's Diplomatic and Defence Editor Mark Urban reports that it's now doubtful that the report from the Chilcot inquiry into the Iraq war of 2003 will be published this year.

He says: "Somebody with a close interest in the inquiry tells me, 'nobody thinks it will come out this year'."

The inquiry, led by Sir John Chilcot, began its work in 2009 and held its last public hearing in 2011.

It was reported earlier this year that the findings would not be made public until after the election.

Eric, Bradford:

Labour would launch an emergency recruitment drive to get 1,000 more nurses into training this year if they win the election.

In a speech on Tuesday to student nurses in Manchester, party leader Ed Miliband will highlight new figures to emerge through Freedom of Information (FOI) requests which suggest one third of NHS Trusts were investigated last year over concerns about safe staffing.

Comedian Al Murray has a new group of supporters - a darts team made up of builders from East London. The group of six, who call themselves Double Diamond Geezers, have taken two weeks off work to tour the constituency of South Thanet, where Murray is standing against UKIP leader Nigel Farage.

They're going to play charity matches and hold pub quizzes, wearing burgundy jackets worn by Murray during his act.

Team captain Lenny Leminson said: "What's not to like about Al's big policy of cutting the price of a pint to 1p?"

You can find a full list of those standing in South Thanet here.

Andrew Neil
Daily and Sunday Politics

Andrew Neil and the BBC's environment analyst Roger Harrabin were joined by leading politicians to debate climate change, energy prices and the countryside, in the first of a series of Daily Politics election debates. The panel of Labour's Caroline Flint, Green Andrew Cooper, UKIP's Roger Helmer. Lib Dem Ed Davey and Conservative Matt Hancock began by each making a statement setting out their party's energy and climate change policies. The debate can be watched now by desktop viewers on the Live Coverage tab above. Watch their opening statements

Robin Brant
Political Correspondent

The BBC should be "cut back to the bone" and the licence fee reduced by two-thirds according to Nigel Farage.

The UKIP leader told a public meeting in Rochester that he believed the BBC should be retained as a public service broadcaster and not be privatised.

But after a week when he was heavily critical of the BBC during the last televised leaders debate, Mr Farage said big changes were needed.

The UKIP manifesto has committed the party to reviewing the licence fee, which comes up for renewal next year, but this is the first time the leader had put a figure on any future licence fee. That would mean the current fee of £145.50 would be reduced to £48.50 under Nigel Farage's proposal.

Nick Robinson
Political editor

Nick Robinson has been getting to the bottom of a dispute about NHS spending in Scotland compared with England. In an update to his blog, he writes:

Speaking in Crewe, David Cameron warned that a link-up between Labour and the SNP could spell economic disaster. He said voters could be "sleepwalking" towards an outcome which would put government into deadlock and bring economic recovery to a halt:

The SNP's Angus Robertson told Radio 4's PM that what he calls the "austerity fetish" of the Conservatives and the Liberal Democrats had led to "untold social damage". Presenter Eddie Mair asked him, several times, if he felt austerity had done no good at all? He replied that it was important to understand "the consequences of the decisions being made".

The Chancellor George Osborne has criticised the Labour leader for his comments to Evan Davis on BBC TV tonight:

Ed Miliband has strongly rejected claims he would allow the SNP to "call the shots" at Westminster following Tory claims that a minority Labour government would be a prisoner of the nationalists.

Interviewed by Evan Davis on BBC One, the Labour leader said he would not be dictated to by the nationalists. "They're not going to tell us, they're not going to tell us. Look, I'm very clear about that," he said.

Challenged that many voters believed that in the event of another hung parliament it would be the SNP who would be "calling the shots", he replied: