The Liberal Democrat leader has said he "very much enjoyed" tonight's leaders' Question Time.
While discussing possible coalition deals both Ed Miliband and David Cameron spoke about negotiations with Nick Clegg 'in a dark room.'
Responding to a question about the behind a scenes deal Mr Clegg said: "If either of them still think they're going to win a majority, they need to go lie down in that darkened room."
Nick Clegg is doing well as the third party leader on Question Time, ITV News Political Editor Tom Bradby says, but is getting less of a grilling from the audience.
This is like the most testing kind of X Factor. Nick Clegg doing quite well, so far, though he has had an easier ride than Ed M.
A few too many party lines, but he's generally making his points well.
Nick Clegg has said the Liberal Democrats will not enter a coalition with any party that wants to implement cuts to education.
The Lib Dem leader said both the Conservative and Labour policies on education "amount to a cut".
"I cannot be more clear with you. The Liberal Democrats will not go into any coalition, any government, we won't sign any coalition agreement if either of those parties insist on those cuts".
Nick Clegg has reiterated he "got it wrong" on tuition fees after the last election.
Asked how his party could be trusted after breaking their vow on tuition fees, Clegg retorted with a smile, "Nice, easy question to start".
"When you make a mistake in politics, just as in life, in politics just as in life, you can't do exactly what you want," the Lib Dem leader said.
"I was absolutely between a rock and a hard place five years ago on that particular policy," he added.
The three leaders have arrived for tonight's leaders' special Question Time in the final televised set-piece before the General Election.
David Cameron, Nick Clegg and Ed Miliband will not be on stage at the same time and will not debate directly with one another.
The Liberal Democrats would insist on an increase in education spending in any coalition deal Nick Clegg has said.
The Liberal Democrat leader says he would not enter coalition with any party that does not agree to protect per pupil funding from nursery to 19-years-old, in real terms, by the end of the parliament.
I can confirm a Liberal Democrat red line - a pre-condition for Government - is increasing spending on education. The Liberal Democrats will not allow our children and grandchildren to pay the price of this generation’s mistakes.
So the next Government must increase spending on nurseries, schools and colleges. That means education spending must rise with both prices and pupil numbers. Without investment in education, there can be no deal with the Liberal Democrats.
Lib Dem leader Nick Clegg will say his party are fighting '60 Eastleighs' on the campaign trail in the Hampshire constituency today.Read the full story ›
Nick Clegg's wife Miriam Gonzalez Durantez has joked that right-wing Conservatives probably want to kick her out of Britain.
As she is Spanish, Gonzalez Durantez is allowed to vote in local and European elections, but not the elections that select MPs.
Gonzalez Durantez told Good Morning Britain, "It is what it is. I have been here for 10 years, I have been religiously paying taxes, and yes it would be nice to be able to vote".
"Listen, if it was up to the right-wing of the Tory party, they would probably kick me out of the country altogether so I am happy I can be here," she added.
Nick Clegg said the package for those looking after loved ones was to reward the 'unsung heroes of British society'.Read the full story ›