# Carole Cadwalladr British investigative journalist for *The Guardian* and *The Observer* who broke the [[Cambridge Analytica]] story and exposed the data-operations and unlawful-spending dimension of the Brexit campaigns. Her reporting connected the [[Donald Trump]] 2016 campaign, the Brexit referendum, [[Robert Mercer]]'s money, and Russian influence into a single transatlantic picture — and made her the target of one of the most sustained harassment, defamation, and [[Online Harassment]] campaigns waged against a working journalist. She figures prominently in [[Peter Jukes]]'s March 2026 essay "Robert Mueller, Carole Cadwalladr and the Daughter of Time," written after [[Robert Mueller]]'s death, which traces how Mueller's Russia investigation rippled into British political journalism. ## The Great British Brexit Robbery In May 2017, Cadwalladr published "The Great British Brexit Robbery: How Our Democracy Was Hijacked" in *The Observer*. The investigation argued that the Brexit referendum had been swung by an opaque, data-driven operation linking [[Cambridge Analytica]], its parent SCL Group, [[Robert Mercer]], [[Steve Bannon]], and the Leave campaigns of [[Nigel Farage]] and [[Vote Leave]]. The piece introduced a mass British audience to [[Psychographic Profiling]], [[Microtargeting]], and the use of harvested Facebook data as a political weapon — themes that the U.S. [[Cambridge Analytica Scandal]] would make global a year later. ## The Whistleblowers Cadwalladr's reporting was built on whistleblowers she cultivated and protected: - **[[Christopher Wylie]]** — the pink-haired former [[Cambridge Analytica]] research director whose document cache, published simultaneously by *The Guardian/Observer* and *The New York Times* in March 2018, blew open the Facebook data-harvesting operation. - **[[Shahmir Sanni]]** — the [[Vote Leave]] volunteer who exposed the [[BeLeave]] money-routing scheme behind the [[Vote Leave Overspend]]. After he came forward, Sanni was outed as a gay man by a statement issued through Number 10 — before he could tell his family in Pakistan — in what Cadwalladr and others described as deliberate retaliation. ## Pre-Publication Pressure Cadwalladr's reporting drew extraordinary pre-publication pressure from the institutions it implicated. [[Meta]] (then Facebook) threatened immediate legal action before the Cambridge Analytica story ran, and [[Cambridge Analytica]] was given a platform to rebut the reporting — including by the BBC — before publication. The pattern illustrated how power closes ranks around a story before it can reach the public. ## The Harassment Campaign Cadwalladr became the target of a years-long campaign of harassment, trolling, and defamation. Much of it was rooted in [[Misogyny]] — Jukes describes it as a "misogyny machine" originally built against [[Hillary Clinton]] and then turned on Cadwalladr. Arron Banks and Andy Wigmore — the Leave.EU figures in [[Nigel Farage]]'s orbit — were central antagonists. They produced a video, set to Russian music, splicing in the *Airplane!* scene of a hysterical woman being slapped and shot, which Cadwalladr and supporters read as a direct, gendered threat. Banks sued Cadwalladr for defamation over a 2019 TED talk and a tweet. After years of litigation, the courts ultimately found in Cadwalladr's favour on the central public-interest defence — but the SLAPP-style suit imposed enormous financial and personal cost, becoming a landmark case in debates over the legal intimidation of journalists. ## Undercover with Jukes Cadwalladr's investigative methods extended to going undercover. With [[Peter Jukes]], she attended a cryptocurrency party in Mayfair, where they encountered [[Alexander Nix]], the [[Cambridge Analytica]] CEO — a scene Jukes recounts in his Mueller essay, noting that Nix told him he had enjoyed one of Jukes's radio plays. ## RWKB Significance Cadwalladr is the journalist who connected the dots that the [[Robert Mueller]] investigation surfaced on the American side — Russian influence, data operations, and the Trump campaign — to their British counterparts in the Brexit campaigns. Her treatment is also a case study in the [[Information Warfare]] playbook turned against accountability journalism: pre-publication legal threats, [[Online Harassment]], coordinated [[Disinformation]], gendered intimidation, and SLAPP litigation deployed not to win in court but to exhaust and silence. ## See Also - [[Cambridge Analytica]] — The firm at the center of her reporting - [[Christopher Wylie]] — Whistleblower - [[Shahmir Sanni]] — Vote Leave / BeLeave whistleblower - [[Vote Leave Overspend]] — The unlawful-spending story she helped expose - [[Peter Jukes]] — Collaborator and chronicler - [[Robert Mueller]] — The investigation whose findings paralleled her work - [[Online Harassment]] — The campaign waged against her - [[Misogyny]] — The gendered character of that campaign