This afternoon’s ICM poll is also hugely damning for John Bercow. More Britons think he should resign than think he should stay:

Bercow should stay as speaker because he is doing a good job: 30%

Bercow should resign or be removed as speaker because he’s not impartial: 32%

Don’t know: 38%

Previous Speakers would look at such numbers and fall on their sword…