Thanks for the C4 link.
www.channel4.com/news/revealed-trump-campaign-strategy-to-deter-millions-of-black-americans-from-voting-in-2016
The ‘Deterrence’ project can be revealed after Channel 4 News obtained the database used by Trump’s digital campaign team – credited with helping deliver his shock victory to become president four years ago.
Vast in scale, it contains details on almost 200 million Americans, among more than 5,000 files, which together amass almost 5 terabytes of data – making it one of the biggest leaks in history.
[...]
In 16 key battleground states, millions of Americans were separated by an algorithm into one of eight categories, also described as ‘audiences’, so they could then be targeted with tailored ads on Facebook and other platforms.
One of the categories was named ‘Deterrence’, which was later described publicly by Trump’s chief data scientist as containing people that 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.