Great Scott – they’ve only gone and made a Back to the Future musical! The Oedipal sci-fi adventure had its premiere in Manchester last night. Boris Johnson and his maverick sidekick Dominic Cummings must wish they could set the clock on the DeLorean to 12 December 2019 and head back to the night of their big election triumph. With time travel not really an option – unless Cummings hires the right kind of weirdo – the pair are stuck in 2020, dealing with a huge bust-up at the Home Office and claims of a Windrush cover-up. I’m Adam Forrest, and welcome to The Independent’s daily Inside Politics briefing.