May, Johnson, Truss, Sunak, and now perhaps Starmer: each one was brought low for a reason. But what if the deeper problem is the office itself?

In post-Brexit Britain, the need to raise massive sums from investors is a huge constraint on changing policy, as Liz Truss found to her cost

Rejoining the EU, massive tax reform, scrapping the pension triple lock – a new leader must summon a sense of emergency and deal with the big issues, says Guardian columnist Polly…