A shadowy global operation involving big data, billionaire friends of Trump and the disparate forces of the Leave campaign influenced the result of the EU referendum. As Britain heads to the polls again, is our electoral process still fit for purpose?

Banks is suing Guardian journalist for defamation over Brexit backer’s ‘covert relationship’ with Russia.

Brexit-backer Arron Banks repeatedly denied that Leave.EU appealed to National Front supporters – in a bid to get the BBC to drop an investigation

MPs say latest revelations show Arron Banks and Andy Wigmore may have misled parliament. / A leader of the Leave.EU campaign suggested sending a “message of support” to the Russian ambassador after the then foreign secretary made a speech that was critical of Russia, documents seen by the Observer suggest.

Nigel Farage was lavishly funded by Arron Banks in the year after the Brexit referendum, Channel 4 News has alleged, with the insurance tycoon providing him with a furnished Chelsea home, a car and driver, and money to promote him in America.

Campaign group led by former Ukip donor Arron Banks accused of 'fake news' over viral video. / Pro-Brexit campaign group Leave.EU has been accused of faking a viral video of illegal "migrants" and forging images purporting to show immigrants committing violent crimes.

An investigation by Channel 4 News also reveals how Arron Banks’ pro-Brexit group appears to have staged photos of migrants attacking women in London.

Despite an agreement by all groups to suspend campaigning in the aftermath of Jo Cox’s death, Arron Banks instructed the social media team at Leave.EU to “boost” an existing sponsored Facebook ad.