17:31

The government is preparing to accept an amendment to the finance bill, tabled by Labour’s Chuka Umunna and the Conservative Anna Soubry, rather than face defeat tonight.

Signed by 11 Conservatives - enough to wipe out Theresa May’s wafer-thin majority - it would oblige the government to publish economic forecasts comparing the impact of its Brexit deal with remaining in the EU.

”I think we’re there,” said one of the amendment’s backers, “we’re expecting them to make the concession at the dispatch box”.

It’s the latest effort by backers of a “people’s vote”, including ex-minister Jo Johnson, to prevent May framing the choice facing MPs when she brings her deal back to parliament next month, as her deal or no deal.And it underlines the challenge the government is facing in getting everyday business through the Commons.

The Treasury is likely to claim that it always intended to publish such projections - pointing to a letter Philip Hammond sent to treasury select committee chair Nicky Morgan earlier this year, which mentioned analysing the impact of no deal, “relative to a status quo baseline”.