tweets, external: Miliband now bookies favourite to be PM. From Spectator's #Election2015 hub: bookmark it now!

Image source, Twitter

On EU negotiations, David Cameron says let's get the change - telling the audience we're quite capable of doing so - then the British people get their choice. And that's all from the BuzzFeed chat with the prime minister.

David Cameron won't commit to 2% of GDP being spent on defence over the next Parliament. There won't be any reduction in the size of the regular armed forces though, he says.

Image source, PA

David Cameron is asked about suicide among young people. He says the UK has too-high a rate of suicide, especially in prisons. There is no doubt mental health needs more attention, he says, adding: "It's "under-played as a health issue".

Image source, BuzzFeed

The PM is being asked questions from the floor now and takes one about political advertising. President Obama has often told him he is lucky not to have political TV advertising.

He tells the audience he agrees we are lucky we don't have it. He says adverts online are ok - they can be made cheaply - whereas TV is a massive cost.

David Cameron says he has two kitchens in his family home.

Nick Clegg or Ed Miliband?, David Cameron is asked. Without hesitation, he says the former.

Asked about "transrights", Mr Cameron says the issue is important. We need to look at combating bullying in schools, he says.

And he says he won't commit to a 50-50 gender balance by 2020, but insists his party is doing better at getting more women into politics.

David Cameron says there were "lots" of things he would have like to done more of. But the main job was to fix the economy.

Would regime change in Russia be good? David Cameron says you have to "deal with what you've got". He tells BuzzFeed messing with borders and self-determination is "extremely dangerous" and that the UK needs to stand up to President Putin.

He says there's no military solution to problems in Ukraine, but there is an economic one. If Russia wants to be part of the 21st Century world, he says, that's fine. But if the country doesn't, it shouldn't expect the benefits of free exchange of information.

tweets: , externalThe future of TV isn't on the internet any time soon. Newsnight nightly audience = 600k-ish. This #buzzfeedbrews Cameron iview = 1k.

Image source, Twitter

David Cameron is talking about three London schoolgirls who have gone to IS-controlled Syria. He tells BuzzFeed they are "deeply misguided" and potentially going to join a criminal organisation. We want to get them back, the PM says, and get this "radical nonsense out of their heads".

David Cameron says he doesn't use snapchat. He says he tweets and has read some of the less complimentary replies he gets to some updates on the site.

The prime minister says he has a personal gmail email address he uses outside work and admits sometimes worrying about the security implications. He has a personal iPhone and a work blackberry, he says.

Image source, Buzzfeed

You won't get more affordable housing unless you build more homes, David Cameron says. He tells BuzzFeed he doesn't want to be in a country where the age of home-owners keeps going up.

The Prime Minister says he isn't just on the side of pensioners. Most young people want grandparents to have a comfortable retirement, he says. For young people, we have created jobs, the PM says. They are not all part-time or zero hour contracts.

"We're not building enough houses" and we need to do more, David Cameron tells BuzzFeed. People who can afford mortgages can't get deposits, he says, adding that the "Help to Buy" scheme is addressing that problem.

tweets:, external David Cameron is wearing a blue striped tie, a navy tie, and black shoes and socks. #BuzzFeedBrews

If you elect a majority, you can hold us to our promises, David Cameron says. But with a coalition, you need to make compromises. Mr Cameron thinks the UK is ready for a majority again.

David Cameron says nobody in his team is preparing for a hung parliament. He tells BuzzFeed he has run a coalition before and he will take steps in the national interest, but will be fighting for a majority. "I only have to get 23 more seats", the PM says.

On TV debates, David Cameron says a multi-party debate should still take place. He says the broadcasters have wasted time.

David Cameron says PMQs can be "pretty rough stuff", when asked about the campaign tone and his description of Ed Miliband as "despicable". The PM says it's despicable not to rule out a deal with the SNP and that his party is running the "most positive possible campaign".