A shift in focus and an angry questioner asks Ms Swinson about her role in the austerity programme of the coalition government - she was a minister back then.

"We didn't get everything right," the Lib Dem leader admits. She says she had "plenty of fights" with the Conservatives and stopped them bringing in certain austerity measures.

She says she does regret "that we didn't win more of those fights".

"I get it, we got stuff wrong, but in the future, we'll do better," Ms Swinson tells the audience.

But the questioner isn't convinced at all - she doesn't believe the reassurances and can't understand why the Lib Dems wouldn't scrap Universal Credit.

Ms Swinson says she recognises she may not be able to persuade the woman.

On Universal Credit, Ms Swinson says she wouldn't scrap it because the issue is "the amount of money in it", not the principle of benefit reform per se.

Reality Check

An audience member suggested that Spain would not allow an independent Scotland to join the EU. Nicola Sturgeon claimed, in response, that Spain had never said this.

Spanish foreign minister Josep Borrell told Politico in an interview in November 2018 , externalthat Spain would have no objection to Scotland rejoining the EU as an independent nation, as long as the independence process from the UK was legally binding.

Iain Watson
Political correspondent

The audience show no sign of flagging - with Jo Swinson being ridiculed for saying she could be PM.

This is her big moment having been excluded from this week's ITV head-to-head.

Jo Swinson says things have got "a lot tougher" for her party "since Boris Johnson and Nigel Farage cooked up a deal".

(She's referring to the decision by the Brexit Party to stand down in some seats. You can read the details here.)

Do you regret beginning the campaign by saying you could be prime minister? the first questioner asks.

There's a bit of a chuckle in the audience at that.

No, I don't regret it, Jo Swinson replies. She says she is "dismayed" at the idea that only Boris Johnson or Jeremy Corbyn could win this election.

"There is a better alternative," she says, and will do "everything possible" to make that happen.

Just ask Theresa May about trying to call the result of an election when you're only three weeks into it, Ms Swinson adds.

There are 46 marginal constituencies - places where the winning majority in 2017 was small - in Scotland.

That's out of a total of 59. So almost all the constituencies are potentially in play.

Of particular interest will be the 21 seats lost by the SNP in 2017. Nearly all voted Remain in the EU referendum so the SNP hopes its anti-Brexit stance will help it to recapture as many of them as possible.

More on that here, along with full analysis of the seats that could turn the election.

We've got to a have "a just and managed transition" from industries like oil and gas to greener ones, Ms Sturgeon tells the final questioner. She says that transition is already under way.

And with that, she's done.

How would you help those outside London - not just in Scotland - to be better represented at Westminster? Ms Sturgeon is asked.

She says she thinks many of the regions of England are treated in the same way as Scotland, not give sufficient priority, and would try to counter that if she has influence over the government.

"The SNP will always be a voice for decentralisation and more powers to be spread," she tells the audience.

But she says she doesn't envisage being part of a formal coalition - and would only seek to exercise influence on the country beyond Scotland "where it is appropriate".

Nicola Sturgeon is now asked about drug deaths in Scotland and what she's doing about the rising numbers.

She says it's a public health emergency and the SNP-led government is investing in services to support people with addiction.

She refers to the desire to introduce "safe-consumption rooms" in Glasgow to help reduce levels of harm.

"There is more to do," she acknowledges, but some of the SNP's policies are having an effect and "there is a real determination" to keep going.

She says the SNP has a record of taking "courageous decisions on public health", for example, introducing a minimum price for alcohol.

Iain Watson
Political correspondent

Nicola Sturgeon is the most experienced in taking part in election programmes - a veteran unlike her opponents of 2015, as well as 2017 (Jeremy Corbyn's first run-out).

And these are good, informed, and pointed questions from the audience - picking Nicola Sturgeon up on promises of EU membership post-independence and pledges made by her predecessor that the last referendum was a 'once in a generation' event.

And they previously pushed Jeremy Corbyn for more clarity on Brexit.

In a sense they got it - with a pledge of neutrality.

People in Scotland have the chance at this election to demand the right to choose their own future, the SNP leader goes on.

Nicola Sturgeon says politicians at Westminster do not have "a moral or democratic right" to stop that if they do.

"We have the ability to send that message," she adds.

Another questioner wonders about the ability of Scotland to stand alone economically given its deficit.

Ms Sturgeon says countries of a similar size to Scotland are richer, so why couldn't Scotland get the chance to take all of its own economic decisions? she asks.

She also says there's been a sea-change in attitude towards the idea of Scottish independence since Brexit and doesn't think that would be the issue people make it.

In the past, Spain has suggested it would block Scotland's entry into the EU as a stand-alone nation because of its own issues with separatists.

Nicola Sturgeon previously set out her red lines for backing a minority Labour government.

Speaking earlier this month, she made clear that Labour would need to back the "principle" of a second independence referendum.

Find the SNP's list of demands here.

There is a lot of chat on social media about Jeremy Corbyn's statement that he would adopt a neutral stance in another Brexit referendum.

The Labour leader told the Question Time audience that they were hearing it first.

BBC presenter Andrew Neil says that a Guardian article which reported that two months ago was the newspaper's interpretation, rather than him saying it himself.

You can decide for yourself - here's the article., external

Iain Watson
Political correspondent

Nicola Sturgeon claims she does not prioritise independence over all else - again an attempt to broaden her appeal, pointing to policies such as free prescriptions.

Reality Check

Jeremy Corbyn said: "95% of the population will pay no more whatsoever in tax" under a Labour government.

This is Labour's plan for income tax, but taxes on dividends and capital gains, which are paid by individuals, will be raised.

Iain Watson
Political correspondent

Nicola Sturgeon suggests that she would have a strong hand to play in a hung parliament - she suggests Jeremy Corbyn would give in to her demands to get a Labour government.

It is no surprise she says she won't support a Conservative government, as the SNP breakthrough in Westminster seats came by attracting central belt former Labour voters.

In the next round of questions, it's put to Ms Sturgeon that she's put the issue of independence ahead of concerns on other matters - like knife crime.

No, she replies. She says she knows Scotland faces challenges, but just look at Labour's manifesto this week - bringing back nursing bursaries, scrapping tuition fees and prescription charges - all things that are already in place in Scotland.

That's proof, she says, that the SNP is already implementing "progressive policies" that others are copying.

More broadly, Nicola Sturgeon says, Brexit is "an extreme example" of the way Scotland is "treated with contempt" by Westminster, so Scotland must have the chance to take its future into its own hands.

Would independence not just be as much of a mess as Brexit, though? the SNP leader is asked.

She says Brexiteers have made "such a hash" of things, but it doesn't mean other "positive change" has to be the same - the proponents of independence would plan much better, she insists.

The SNP has yet to publish its election manifesto, so we don't have any detailed guidance to refer to as Nicola Sturgeon takes questions.

However, we're put together a brief guide to the Scottish National Party that includes five policies that are likely to feature in the document.

Read more here.

Iain Watson
Political correspondent

Nicola Sturgeon's red lines for backing Jeremy Corbyn are being carried out by megaphone diplomacy on BBC1- a Scottish referendum and (easier for Jeremy Corbyn) an end to austerity.

"We will use that influence, if we have it, responsibly. Of course, to stand up for Scotland, but also to stand up for progressive values across the UK."

Nicola Stugeon says she "could not put Boris Johnson into Downing Street" and is then interrupted by a round of applause.

She says Jeremy Corbyn isn't her choice of Labour leader, but she could work with him if he respects the right of the people of Scotland to determine their own future.

She lists a host of other policies too like an end to austerity, changes to pensions, and so on.

Asked about Mr Corbyn's remarks this evening on not supporting indyref2 for a number of years, Ms Sturgeon asks whether people really believe he will "compromise the chance to have a Labour government" on the issue of Scottish independence.

"He supports the right to self-determination for virtually every other country in the world," she adds.