The Conservative party has supplied Britain with as many prime ministers since 2010 as Labour managed in the whole of the 20th century. It is a tally that describes ruthless effectiveness at keeping power and a dismal record of doing anything useful with it.
The high leadership turnover – four in the past four years – is a symptom of failure at everything except the art of avoiding responsibility and deflecting blame. That is the craft Rishi Sunak must master to have a chance of staying in office after the next general election.
