‘Get some boomerangs,’ Liz Truss says to her aides. The Chief Secretary to the Treasury isn’t looking for something to throw — she is referring to the short videos on Instagram for which she is becoming famous. She has carved out a reputation in Tory circles for her love of social media, which she uses to poke fun at friends, rivals and herself while promoting her upbeat brand of liberal, free-market conservatism: what she calls ‘Tories with attitude’.