It has been more than a century since an established political party was successfully overtaken by an insurgent newcomer, when the Liberals gave way to Labour.
The rise of Reform UK to its status as a political force that is able to pose a threat to the Conservatives – even with only five MPs, despite its 15 per cent of the vote share – is underscored by the row between Nigel Farage and Kemi Badenoch over who has the most members.