Reality Check

UKIP's Paul Nuttall says: "We have a huge trading deficit with the EU - they need us more than we need them."

The claim of who needs whom more is made often and the answer depends on whether you look at it in cash terms or in percentage terms.

The EU risks losing more in cash terms. The UK risks a higher proportion of its exports.

You can read more about it here.

Amber Rudd is asked to defend leadership when her leader isn't there, with shouts of "where is she?" echoing around. Awkward...

Luckily, she says it is about having a "strong team" around.

The Home Secretary makes a jibe at Jeremy Corbyn, noting his MPs didn't have confidence in him, and saya she had hoped Diane Abbott would be there to debate tonight (Mr Corbyn only decided to take part earlier today) - saying he has a "weak team" around him that won't be able to negotiate Brexit.

Mr Corbyn comes back by saying 300,000 people elected him to lead his party and he is proud to be Labour leader.

A lighter moment of as Leanne Wood challenges Paul Nuttall over whether he would "refuse to pay a real divorce bill".

They are arguing over whether the UK should pay a settlement to the EU for Brexit. He says the UK shouldn't pay to leave.

"Would you refuse to pay your dues if you were going through a real divorce then," she asks him.

He points out that the UK has already paid in billions to the EU.

"In the real world, there's no such thing as a free divorce, you have to pay your dues," she says, adding "we know all about blokes like you".

Angus Robertson, SNP leader at Westminster, condemned US President Trump's expected move to pull out of the Paris agreement on climate change.

Climate change, said Mr Robertson, was one of the biggest challenges the world faced. And, in the light of President Trump's decision, he questioned Prime Minister Theresa May's influence with the US.

Veteran election results show presenter David Dimbleby has revealed what happens in the final moments before the start of the results programme.

Speaking on The One Show, the BBC Question Time presenter, who will be anchoring his tenth results programme on June 8, said: "We're locked into a room a quarter of an hour before 10 o'clock and told the result of the exit poll. We're not allowed out. We have to be escorted to the studio because, of course, in that quarter of an hour you could make a lot of money."

Dimbleby listed the 2015 results as among his most memorable because it had been unexpected.

Reality Check

Caroline Lucas says that Britain is the second biggest arms dealer in the world.

The Commons Library paper, external from December 2016 says that the UK was the third largest defence exporter in the world, after the US and France, both in terms of market share – 12.8% – and the value of its exports – £7.7 billion – in 2015.

Paul Nuttall says he has never changed his stance on anything and that he doesn't "flip flop"

He says, back when he joined UKIP, "you didn't do it for a career", but for the principle of leaving the EU.

His leadership will be about making sure people get the Brexit they voted for and paying no divorce bill.

Finally, the leaders are asked to say why they are right to take the country forward.

Jeremy Corbyn says: "Leadership is about understanding people and not being high and mighty."

He says we need a government which "cares for everybody and doesn't walk by on the other side - we can't go on like this".

Ian Lloyd emails: "It took a few minutes, but the debate, as I knew it would, has descended into a shouting match."

Simon Armitage says: "A rabble pool managed. I am none the wiser but really bored."

Another viewer writes: "This is depressing viewing. Demeaning and lacking in dignity and mutual respect and the audience appears bias. Still an undecided voter."

Ian in Ashford writes: "I'm sorry BBC but the "Leaders" debate this evening so far is poorly, very poorly, moderated - it's a bun fight - I'm glad Mrs May has decided not to attend because this debate serves no purpose and, in my opinion, shows out politicians at their worst.

John Grosvenor writes: "Politicians have forgotten that the British people voted to leave the EU, Not the MPs, They should be listening to the British Public it's not about them but about Britain's that believe in this country. It's time for Britain to become strong and independent again."

Jeremy Corbyn says the UK should adhere to the Paris agreement and urge the American people to press their government to do the same.

The Labour leader also says he is determined to get 60% renewable energy by 2030 and reduce emmissions.

But he wants a change in attitude towards the environment as well.

Caroline Lucas thanks the audience member for raising the environment, saying she struggles to think of the "polite word" for her thoughts on Donald Trump's plan.

We should "ignore him", she says, as it's proven this is the "greatest threat".

Amber Rudd, a former energy secretary, responds "Caroline is right" and she's "disappointed" at reports Trump is backing away from the Paris agreement.

Leanne Wood urges: "Tell him he's wrong."

Reality Check

Caroline Lucas mentioned an ex-MI5 boss who said the invasion of Iraq increased the UK terror threat.

The Green Party co-leader was talking about Eliza Manningham-Buller.

In 2010, Manningham-Buller told the Iraq inquiry that the invasion had radicalised "a few among a generation".

She said she was not "surprised" that UK nationals were involved in the 7/7 London bombings.

Read the full report here.

US President Donald Trump's the leader of the free world, observes Paul Nuttall, as he goes on to try to explain what he is thinking in potentially pulling out of the Paris climate accords.

He's "putting America first", he says. And, frankly, we should be putting Britain first, he adds.

Some of the leaders were, unsurprisingly, getting rather heated around the security issue.

Jeremy Corbyn says he "utterly deplores" Paul Nuttall's language and his "subliminal attack on people of Muslim faith".

But the UKIP leader points out Mr Corbyn has invited Hamas to the House of Commons.

"Are Hamas still your friends?" he repeats, without an answer from the Labour leader.

The next question is about how they would deal with President Trump dropping the Paris climate change agreement.

Tim Farron says it's the "biggest threat" to our future and "not just for Guardian readers" to tackle.

The critical thing people have to remember in the wake of the Manchester attack, says Tim Farron, is that knee-jerk new policies and laws tend to do "more harm than good".

And the best response to the terrorists "is the defiance of keeping on", he says.

Leanne Wood says the UK should be investing more into police as "those are the people running into dangerous situations".

But the Plaid Cymru leader says cuts to things like youth work stops the ability to challenge the "root cause" of extremism.

Caroline Lucas argues "the best form of defence is intelligence-led policing and community engagement".

She claims that UKIP's Paul Nuttall is linking Islamist terrorism to Islam, which she calls "outrageous".

Then she turns on the home secretary, demanding: "Why is Britain the second-biggest arms dealer in the world?"

Her question draws applause.

Amber Rudd responds that she "makes no apology for being a government that wants to defend this country.

"We have to make sure we can do that by having a strong industry," she says.