Sadly for their opponents, the Tory Doomsday Scenario is flawed

Some ministers are worried that a change to the voting system means they will never win again, writes John Rentoul

It would not take much to deprive Boris Johnson of his majority (Reuters)

The Conservative Doomsday Scenario is one that anti-Tories enjoy contemplating. Now it seems that some government ministers are dwelling on it too.

James Forsyth, the political editor of The Spectator, reports that some of them are worried that, “if the Tories lose the next election, changes to the voting system may see them locked out of office for a generation”. The party could “fall apart”, they say. “It is an existential threat.”

Fortunately for them – and unfortunately for those who dream of an anti-Tory “progressive alliance” – such a true blue apocalypse is less likely than it seems.