Here’s the true legacy of Boris Johnson: dishonesty is standard, the Commons has lost sight of the truth | Polly Toynbee

The former leader had no regard for truthfulness, and now we see others happy to follow his example, knowing the system rarely holds them to account

Here comes the Boris Johnson Brexit wrecking ball. How could he resist a chance to ride back in to sabotage any agreement Rishi Sunak reaches with the EU? The walrus breaks the surface to warn that abandoning his treaty-breaking protocol deal is a great mistake", summoning old supporters - who brag that they number 100 - to his battle flag.

Out comes Sir James Duddridge, ex-Brexit minister, to declare that any role for the European court of justice would be a wedge", knowing the issue is a deal-breaker. The European Research Group's David Jones absurdly claims the protocol means a foreign government governing part of our country". In case Johnson returns, fence-sitters keep their options open, so Penny Mordaunt calls his intervention not entirely unhelpful".

Polly Toynbee is a Guardian columnist