One hundred and thirty MPs have backed the eurosceptic amendment, in what initially appears to be an even greater setback for the prime minister than expected.
We speak to Europe minister David Lidington about the trials and tribulations of life in one of the coalition's toughest jobs.
Europe minister David Lidington has hit out against Conservative eurosceptics ahead of Wednesday's likely vote by telling them to focus on issues other than the in/out referendum tearing his party apart.
David Cameron has received a major boost from Barack Obama after the US president firmly backed his EU negotiations in their White House press conference.
Conservative backbenchers are preparing to defy their leader over the EU referendum in another sign of David Cameron's weakness on Europe.
Tory MEPs are demanding authorities rein in a Spanish politician after he told Argentinean officials the European parliament did not recognise British sovereignty over the Falklands.
The short period of unity the Conservative party has enjoyed since the death of Margaret Thatcher seemed to be falling apart today, as Downing Street offered a nervous and baffling response to a manoeuvre by Tory backbenchers.
Somali extremism needs more financial aid to help fight terrorism, David Cameron has said.
Former chancellor Nigel Lawson has issued a challenge to the authority of David Cameron by insisting he will vote against membership of the EU whatever deal the prime minister might be able to secure.
A group of MPs have criticised the Scottish government's proposed foreign policy plans should they gain independence.
Over 100 Conservative backbenchers have again expressed their displeasure with the prime minister's position on Europe, in another setback for David Cameron's authority.
The Queen was being dragged into a row about the alleged torture of British citizens in Dubai today, as a visit by the president of the United Arab Emirates (UAE) coincided with a guilty verdict for the men.
US and UK officials said there is limited but growing evidence that Syria possesses chemical weapons. Deployment of British troops is unlikely, David Cameron has said.
Margaret Thatcher will be commemorated with a library and museum modelled on those of her close friend Ronald Reagan.
Afghanistan's fledgling security forces will struggle to prevent the country falling into the grips of a renewed insurgency after 2014, MPs have warned.
Margaret Thatcher restored "confidence and pride" too Britain was a "true friend" of America, President Barack Obama said today.
David Cameron is addressing criticisms his EU referendum plans are creating uncertainty this week, as he takes the case for reform to European capitals.
The Foreign Office will not ruled out evacuating its embassy in North Korea after receiving notice that its staff’s safety could not be guaranteed, a spokesperson has told politics.co.uk.
The prime minister went out of his way to humiliate Nick Clegg this morning with a robust defence of Britain's nuclear capability which left the Trident review looking redundant even as a face-saving exercise.
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As the next general election begins to loom over the horizon, the debate over Britain's future energy mix is starting to hot up - and nothing seems guaranteed.
There won't be a final decision on Britain's long-term aviation strategy until after the 2015 general election - but an aggressive national debate is already underway.