Rishi Sunak ruffled his own party’s feathers last week when – in reference to last autumn’s market turmoil – he told an audience in Lancashire: ‘You’re not idiots, you know what’s happened.’ This was quickly interpreted as the Prime Minister branding the MPs and business leaders calling for immediate tax cuts as ‘idiots’, sparking not only backlash but also another round of debates on a topic that has been dividing the Tory party since last summer.