He was Trump’s single biggest donor. Mercer started backing Ted Cruz, but when he fell out of the presidential race he threw his money – $13.5m of it – behind the Trump campaign.
It’s money he’s made as a result of his career as a brilliant but reclusive computer scientist. He started his career at IBM, where he made what the Association for Computational Linguistics called “revolutionary” breakthroughs in language processing – a science that went on to be key in developing today’s AI – and later became joint CEO of Renaissance Technologies, a hedge fund that makes its money by using algorithms to model and trade on the financial markets.
One of its funds, Medallion, which manages only its employees’ money, is the most successful in the world – generating $55bn so far. And since 2010, Mercer has donated $45m to different political campaigns – all Republican – and another $50m to non-profits – all rightwing, ultra-conservative. This is a billionaire who is, as billionaires are wont, trying to reshape the world according to his personal beliefs.
It was $10m of Mercer’s money that enabled Bannon to fund Breitbart – a rightwing news site, set up with the express intention of being a Huffington Post for the right. It has launched the careers of Milo Yiannopoulos and his like, regularly hosts antisemitic and Islamophobic views, and is currently being boycotted by more than 1,000 brands after an activist campaign. It has been phenomenally successful: the 29th most popular site in America with 2bn page views a year. It’s bigger than its inspiration, the Huffington Post, bigger, even, than PornHub. It’s the biggest political site on Facebook. The biggest on Twitter.
Prominent rightwing journalist Andrew Breitbart, who founded the site but died in 2012, told Bannon that they had “to take back the culture”. And, arguably, they have, though American culture is only the start of it.