Official information watchdogs have demanded a warrant to search the records of political campaigns firm Cambridge Analytica amid fresh allegations against the company.

Ukip has been dealt a fresh blow after it was ordered to pay £175,000 in just 14 days in legal costs to three Labour MPs after a bitter court battle.

PoliticsHome has scoured party spending data for the 2017 general election so you don't have to. Here are just some of the key findings. 

Theresa May will survive as Prime Minister despite the Conservatives heading for their worst-ever performance in London in the May local elections, a leading pollster has predicted.

A Conservative MP today blasted the Government over a deal on fisheries post-Brexit - saying it would be “easier to get someone to drink a pint of sick than try to sell this as a success”.

Scottish Conservative leader Ruth Davidson has described the Brexit transition as an "undoubted disappointment" after David Davis was accused of betrayal by fishermen.

David Davis and Michel Barnier have agreed the terms of a post-Brexit transition deal - but admitted that there is still no agreement on how to avoid a hard Irish border.

Senior Labour staff are resigning en masse ahead of Jennie Formby's appointment as the party's new general secretary.

A former Labour minister has hit out at Jeremy Corbyn’s response to the Salisbury nerve attack, claiming his position is “as staggering as it is tragic”.

The Conservatives spent £7.5m more than Labour at the general election that cost Theresa May her Commons majority last year, new figures have revealed.

The EU has stopped short of backing the UK government view that Russia was behind the nerve agent attack in Salisbury that left three people fighting for their lives.

Labour has urged the Government not to “cave in” to the gambling industry over new recommendations for a £30 maximum bet on fixed-odds betting machines.

Facebook founder Mark Zuckerberg could be hauled in front of a Commons committee to face questions over his company’s data sharing practices.

The Government will today announce a £26m fund for school breakfast clubs across the country.

A trio of cross-party MPs has urged the Chancellor to crack down on fixed-odds betting terminals by lowering the maximum stake from £100 to £2.

Vladimir Putin's crushing victory in the Russian presidential campaign was helped by the furore over the Salisbury nerve agent attack, a Moscow spokesman has claimed. 

A Conservative MP has warned that he will try to vote down the final Brexit deal unless it includes returning full control of Britain's fishing waters. 

John McDonnell has broken ranks with the Labour leadership to take a tough new line against Russia by declaring that Vladimir Putin is responsible for the Salisbury nerve agent attack.

Boris Johnson has admitted he did take part in a tennis match with the wife of a former Russian minister after she donated £160,000 to the Conservative party.

The BBC have strongly denied that they photoshopped Jeremy Corbyn's hat during a segment on Newsnight discussing the response to the Salisbury nerve agent attack.

The nerve agent used to poison Sergei and Yulia Skripal may have originated in a government facility in Wiltshire, a senior Russian official has suggested. 

A leading academic has predicted that the cost of Britain’s top degrees will soar to £120,000 within the next ten years. 

Voters face further deep spending cuts or "substantial" tax rises to shore up the public finances, two senior Tories have warned Philip Hammond. 

A group of Conservative MPs with seats in Labour heartlands are set to launch a new campaign to win over millennial voters.

The UK will not be ready for changes to the customs system in time for the end of the Brexit transition period, a report presented to Cabinet ministers has warned. 

Company bosses who fail to protect the pension funds of ailing firms will face tough new criminal sanctions under government plans set to be announced this week. 

Major power companies and the National Grid have been put on alert over possible Russian cyber attacks on key British infrastructure.

Russia has expelled 23 British diplomats as part of a package of measures in retaliation against UK sanctions in the wake of the Salisbury nerve agent attack.

Jeremy Corbyn has not been given access to some top secret intelligence over the Salisbury poisoning, it has been reported.

Ministers are considering extra tax rises on older members of the public to pay for elderly care, it has emerged.

Scotland’s Transport Minister has demanded a Labour councillor be expelled after he made an anti-Muslim remark.

The controversial youth arm of the Conservative party has been relaunched, three years after it was rocked by bullying allegations.

Theresa May should request an extension to the Article 50 process in order to give the Government more time to strike a good Brexit deal, a cross-party group of MPs is to declare.

Supporters of Jeremy Corbyn were handed a boost today as they ousted the longest serving Labour mayor in the country.

A bid to give child refugees in the UK the right to be reunited with their families has cleared its latest parliamentary hurdle.

A close ally of Jeremy Corbyn has said that Labour MPs who support Theresa May over the Salisbury spy poisoning are his "political enemies".