Clegg: Lib Dems will stop 'lurch to extremes' in government

The Chancellor George Osborne has reacted to the launch of the Liberal Democrat's manifesto by claiming that a vote for them would put Ed Miliband and Labour in power.

Shadow Deputy Prime Minister Harriet Harman has claimed that the Liberal Democrats are trying to pretend that they haven't been part of government for the past five years - and that they aren't responsible for the country's 'problems'.

Nick Clegg laid his cards on the table with the Liberal Democrat manifesto launch.

He said his party were vital to stop the Conservatives or Labour lurching to "extremes". He also argued a coalition including the LibDems was the only way of keeping Nigel Farage and Alex Salmond out of government.

• Read more: Lib Dem manifesto launch 'wasn't quite like the others'

ITV News Political Correspondent Emily Morgan on the Lib Dem's push for power.

Deputy Labour leader Harriet Harman says no one would believe the Liberal Democrat's manifesto promises because they broke their pledge to protect university tuition fees.

The Liberal Democrats' unusual choice of backdrop distracted some Twitter users from the party's manifesto policies today.

Many compared the brightly coloured handprints and neon lights surrounding Nick Clegg to a "disco" as he delivered his speech in Battersea, south London.

The Liberal Democrats manifesto launch in Battersea was hit by a technical glitch today.

Watch Nick Clegg interrupted by a soundcheck as his microphone fails:

Nick Clegg called the Liberal Democrat manifesto "an insurance policy against a government lurching off to the extremes" after the election.

With neither Labour nor Conservatives making a breakthrough in opinion polls, Clegg said the big question for voters is which party will join David Cameron or Ed Miliband in coalition.

He urged voters to consider "what will become of Britain" if Ukip's Nigel Farage or the SNP's Alex Salmond get into government.

He pledged that Liberal Democrats would always act responsibly, fairly and "in the best interests of Britain" if they return to government as part of a coalition, promising, "We will add a heart to a Conservative government and we will add a brain to a Labour one."

Nick Clegg has reiterated that mental health care is a priority in the Liberal Democrat election manifesto.

"We're turning the page on generations of inequality between mental health and physical health," he told an audience in Battersea during his party's manifesto launch.