Millions of Americans in key battleground states were separated into eight categories, so they could be targeted with tailored ads online.
One of the categories was named ‘Deterrence’, which was later described publicly by Trump’s chief data scientist as containing people the campaign “hope don’t show up to vote”.
Analysis by Channel 4 News shows Black Americans - historically a community targeted with voter suppression tactics - were disproportionately marked ‘Deterrence’ by the 2016 campaign.
In total, 3.5 million Black Americans were marked ‘Deterrence’.
Overall, people of colour labelled as Black, Hispanic, Asian and ‘Other’ groups made up 54% of the ‘Deterrence’ category.
Meanwhile, categories of voters the campaign wished to attract were overwhelmingly white.
The investigation reveals the Trump campaign targeted Black Americans with negative ads on Facebook and social media - despite the campaign's denials.
INVESTIGATION: Claims of a toxic culture engulf Equality and Human Rights Commission as it confirms an investigation into “discrimination” claims against its Chair.
Tonight, a report into the equality watchdog – as sources close to its Chair say she is the victim of “witch-hunt" from the trans lobby working inside the Commission.
Channel 4 News understands even some staff were unaware of the barrister-led investigation until it launched its probe.
An extra 10,500 children could go into care in England, costing £1bn more over ten years. That's the conclusion of research exclusively shared with @Channel4News by five leading children's charities:
@C4Ciaran Action for Children, Barnardo’s, The Children’s Society, the NSPCC and the National Children’s Bureau commissioned Alma Economics to model the government's response to last year's Independent Review of Children's Social Care, led by Josh MacAlister.
The research, shared with @Channel4News, warns that the government is set to spend an additional £1 billion on children's social care over 10 years as a result of not immediately implementing the review's recommendations.
Exclusive: Channel 4 News has seen a letter signed by Black Labour MPs calling on Sir Keir Starmer to take "urgent action" on anti-Black racism in the party following the Forde report.
"Despite our Party’s claims to be anti-racist [...] we, our members and supporters are losing faith in the ability and commitment of this leadership to tackle the issues raised in the Forde report, and we demand urgent action,” the letter reads.
Channel 4 News has found at least nine cameras made by Chinese CCTV manufacturer Hikvision on the Manchester base of the UK’s intelligence, cyber and security agency GCHQ.
The cameras were found at Heron House - which GCHQ describes as its “secure site in the North West”.
Beijing based Hangzhou Hikvision Digital Technology Company is blacklisted by the US government amid concerns over national security and the systems are being used by China in the surveillance and oppression of the Uyghur Muslim population in Xinjiang.