How academic at centre of Facebook scandal tried – and failed – to spin personal data into gold As Aleksandr Kogan goes before parliament on Tuesday to account for his role in the controversial harvesting of Facebook data that was later used by Cambridge Analytica, he leaves behind him two unsuccessful companies and a once-promising academic career. Kogan was a young psychologist fresh off a post-doctoral fellowship when he earned an appointment as a lecturer at Cambridge University in 2012...

Ted Cruz’s presidential campaign has ramped up its aggressive voter-targeting operation, paying out more than $3m to a company that – along with parallel funding via Super Pacs linked to the senator’s top donor – is using detailed psychological profiles to sway voters. Iowa caucus day: Palin praises Trump as 'he who will be the next president' – campaign live Read more A Guardian analysis of the final campaign disclosures released on the eve of Iowa’s caucuses shows the Cruz campaign, banki...