From 2019 to 2021, Samuel Kasumu was the most senior Black advisor in Downing Street, and was widely referred to as Boris Johnson’s racism advisor, working alongside the former Prime Minister during the first half of the Covid pandemic. Kasumu left Downing Street in April 2021, amid the fallout from a UK government report that dismissed institutional racism. It wasn’t until after leaving his position, he says, that he realised how much of an ‘outsider’ he was, as a Black, working-class man who did not go to Oxbridge. In this week’s episode of Ways To Change the World, he talks to Krishnan Guru-Murthy about the reasons why he first joined the Tory party aged 19, the role of special advisors in No 10 and why culture wars inside Downing Street made the downfall of Boris Johnson ‘inevitable’. Produced by Silvia Maresca.