David Cameron says if talks on EU renegotiations don't succeed he doesn't "rule anything out". But he says during his talks, there is a lot of "goodwill" because Europe benefits from having Britain in the EU.

He says "once you start to think about it" the UK would still be impacted by EU issues such as a financial crisis or a migrant crisis - even if outside the EU.

David Cameron says some proposals are difficult but everyone is committed to put in the work to achieve a solution. 

He says the UK needs to ask what they want from their relationship with the European Union and says he is working to address concerns by British people. 

He says with "goodwill on all sides" he believes there can be a "successful outcome".

Polish Prime Minister Beata Szydło says she wants to support Mr Cameron's proposals and the UK's renegotiations. But she warns that they do not see eye-to-eye on everything, although she hopes that further discussion could help resolve differences and reach a consensus. 

Moving on to the more difficult issue of EU migration and welfare Mr Cameron says they will work together to "find a solution".

He says he supports free movement but there are challenges with the scale of movement. David Cameron says a solution can be found. He adds Poland wants Britain to say in the EU. 

He says they've been "excellent discussions" and describes the relationship as "good" but wants to make it "great".

Speaking about the European Union renegotiations Mr Cameron says their discussions have been detailed and says there is much they agree on, such as having stronger national Parliaments and acknowledging ever closer union is "not for all". He says they want new rules for those outside the eurozone, and more done to cut back bureaucracy.

On defence, Devaid Cameron says the two countries have agreed to work together on Ukraine to counter "Russian propaganda". He says they will also strengthen their defence ties through NATO.

Prime Minister David Cameron is holding a press conference with Polish Prime Minister Beata Szydło. 

He says the UK-Poland relationship matters for "security" and "always will". He honours Poland for standing up to "communism". He says images of Solidarity and tearing down the Iron Curtain helped shape his "political outlook"

He adds the two countries are "natural partners" in trade and defence.

Image source, Thinkstock

Good progress is being made with implementing Scotland's new devolved financial powers, according to the country's spending watchdog.

Audit Scotland said Revenue Scotland had successfully delivered both the Land and Buildings Transaction Tax (LBTT) and Scottish Landfill Tax.

The taxes were both devolved under the Scotland Act 2012.

Audit Scotland also said the introduction of the Scottish rate of income tax next April was on track.

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Image source, Reuters

Argentina's outgoing President Cristina Fernandez de Kirchner has made an emotional farewell speech to supporters in Buenos Aires.

She urged people to take to the streets if they felt betrayed by the new centre-right government.

Conservative Mauricio Macri, who won a run-off election last month, is due to be sworn in as president later.

Mr Macri inherits a host of economic problems including inflation running at almost 15%, officials figures show.

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Image source, Getty Images

A petition calling for Republican presidential hopeful Donald Trump to be barred from entering the UK has gathered more than 370,000 names, so MPs will have to consider debating it.

The petition went on Parliament's e-petition website on Tuesday.

It was posted in response to Mr Trump's call , externalfor a temporary halt on Muslims entering the United States.

Chancellor George Osborne criticised Mr Trump's comments but rejected calls for him to be banned from the UK.

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Image source, PA

The "armies" of people going hungry in Britain should be tackled with the same political effort as the battle against terrorism, a senior MP has said.

Labour MP Frank Field is chairman of a Commons committee which has warned of children going for days without a meal.

Its Feeding Britain report, backed by the Archbishop of Canterbury, proposes a tax on fizzy drinks to fund food projects during school holidays.

The government said it would look carefully at the recommendations.

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Image source, AFP/Getty Images

The current level of net migration to the UK is "not sustainable", David Cameron has said, as he continued his diplomatic push for EU benefits reform.

The PM wants to curb migrants' benefits to cut immigration, but some European leaders are said to oppose the move.

After talks in Bucharest with the Romanian president, Mr Cameron said he was "confident" of reaching a deal on his four key renegotiation aims.

The UK PM is also visiting Poland on his two-day trip to eastern Europe.

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Ross Hawkins
Political correspondent

Image source, Getty Images

The campaigning group set up by Labour leader Jeremy Corbyn's supporters - Momentum - faces the prospect of an investigation by the information commissioner.

The data protection regulator said it had received a complaint about the group and would be making enquiries.

Momentum said it would co-operate and had taken every measure to comply with regulations.

The group has collected the data of tens of thousands of activists.

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Image source, PA

Four of the world's biggest tobacco firms are to begin a legal challenge to the government's new packaging rules.

The regulations will ban companies from using any logos or branding on packets of tobacco products from May 2016.

Philip Morris International, British American Tobacco, Imperial Tobacco and Japan Tobacco International say it will unlawfully take away their trademark intellectual property.

The government argues the measure will discourage more people from smoking.

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Image source, Thinkstock

The NHS in England will struggle this winter without more beds in care homes and other community settings to ease hospital pressures, researchers say.

The Nuffield Trust said that last winter a small proportion of patients - just 3.6% - had taken up more than a third of hospital beds.

The research group said help targeted at this group - most of them frail and elderly - could have a big impact.

A spokesman for NHS England said moves were being made to improve the system.

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Good morning and welcome to today's rolling coverage. David Cameron is in Poland visiting Prime Minister Beata Szydlo to discuss his EU renegotiation demands. Yesterday he said current net migration levels were "unsustainable". Defence Secretary Michael Fallon is expected to deliver the government's annual report on the armed forces covenant. We'll bring you all the political stories throughout the day, starting with a round-up of the political stories currently running prominently on the BBC News website.

Here's a summary of today's main political stories:

• The current level of net migration to the UK is "not sustainable", David Cameron said, as he continued his push for EU benefits reform  
• Labour's Angela Eagle poked fun at David Cameron's EU reforms as she traded jokes with George Osborne at Prime Minister's Questions
• A legal action challenging the election of Lib Dem Orkney and Shetland MP Alistair Carmichael has failed
• The government rejected calls to release confidential files about a trade union dispute in the 70s, despite claims of "compelling new evidence"
• The current state of the Labour Party is a "tragedy", former Prime Minister Tony Blair has said
• George Osborne has announced a £50m fund for families and businesses hit by floods in Cumbria and Lancashire
• The security services could remotely take over children's toys and use them to spy on suspects, MPs have been told
• The televised debates that took place before the general election performed a "crucially important civic role", according to a new study
• Senior Tories have rallied round party chairman Lord Feldman who is facing calls to quit over claims of bullying in the party's youth wing

Our rolling political coverage resumes on Thursday morning. David Cameron continues his EU renegotiation tour, holding talks with his Polish counterpart, Beata Szydlo. And Defence Secretary Michael Fallon will deliver the government's annual report on the armed forces covenant. Do join us then.