Tina from Tunbridge Wells says: "I have fostered more than 100 children over 27 years.

"Despite the support from my local authority I now struggle to get appropriate mental health services, special educational needs support, and even doctors' appointments.

"What are you going to do for vulnerable children?"

Rory Stewart says the other candidates have pledged tax cuts that would cost £84bn a year.

He says he doesn't think this is "the time to be cutting taxes", with public services under "huge pressures".

He has a pop at his rivals suggesting they are dreaming up policies to get through 'the next 15 days".

Chris Mason
Political Correspondent

... 32 minutes in. Emily shuts them down though, saying: "I don't want to talk about Jeremy Corbyn."

Reality Check

The candidates are talking about their tax plans. You can find more on what they are proposing and what it would cost here.

The first question to the five men who could be the next Tory leader and PM is about a Brexit date guarantee.

Chris Mason
Political Correspondent

Michael Gove directly criticises Boris Johnson's tax policy for easing the burden on the better off.

Chris Mason
Political Correspondent

Michael Gove repeats his idea to scrap VAT, which he set out in a Sunday newspaper recently. But no further detail, so far. He talks a lot about his family background and says he understands working people.

Chris Mason
Political Correspondent

Boris Johnson accidentally ignores Emily Maitlis, but not for long. "Forgive me," he says, when she points out "I'm here." She's stood next to him.

Now on tax and his plans for higher earners. He says it's his "ambition" - there is a big, big difference between an "ambition" and a promise to do it.

Sajid Javid says he would focus tax cuts on "working people" through the basic rate of income tax. These people have been under "too much pressure", he says.

Jeremy Hunt also says he would like to "reduce the tax burden on the lowest paid".

He says eventually he would like people to be able to pay £1,000 a month without having to pay any income tax or national insurance.

They're setting themselves against Boris Johnson - up shortly - who's already announced an aspiration to cut taxes for higher earners.

Reality Check

Back for a moment to the issue of the Irish border. Asked about how he would deal with the question, Sajid Javid said: "It is perfectly possible to have an open border with two different customs arrangements on either side of the border using existing technology."

Other borders between EU and non-EU countries do use technology - for example at the Sweden-Norway border cars go through unmanned border posts equipped with cameras that use an automatic number plate recognition system and goods are declared to customs before they leave warehouses. There is still some physical infrastructure.

But the EU still requires physical checks of goods at the Swedish border, so this system alone wouldn’t eliminate the need for checks at the border in Ireland - a key sticking point in negotiations.

Chris Mason
Political Correspondent

More of a specific, in terms of an aspiration, from Jeremy Hunt in terms of tax cuts - he wants people to be able to earn £1,000 a month before paying tax. But the income tax threshold is around that already, so is that a reference to National Insurance?

Chris Mason
Political Correspondent

Sajid Javid talks about tax cuts - but no specifics.

Chris Mason
Political Correspondent

The Brexit chat - head on, at least - is done. Now onto tax...

James in Oxford, who says he used to be a Conservative voter but now considers himself party-less, asks the candidates: "What is your plan to lift the tax burden on the working classes?"

Michael Gove says there is a need to "supercharge" work on alternative arrangements that could replace the backstop plan in the Brexit deal.

But Rory Stewart says the EU has made it "entirely clear" that the withdrawal agreement must include the currently configured backstop.

Chris Mason
Political Correspondent

A double blast of sarcasm from Rory Stewart towards Boris Johnson... followed by an assumption he will duck the question. This is the kind of scrutiny Team Johnson hoped to escape tonight if Mr Stewart had been knocked out.