Weak leaders are only part of the story. Restless MPs and volatile voters have made Downing Street harder to survive.

There was a time when becoming Prime Minister of Britain represented the culmination of a life’s work. Men spent decades climbing party ladders, surviving ideological civil wars,…

Britains political system has seen repeated early exits of prime ministers over the past decade, with six leaders from David Cameron to Keir Starmer all failing to complete full…