The long-awaited Davies Commission

“has unanimously concluded that the proposal for a new northwest runway at Heathrow Airport, combined with a significant package of measures to address its environmental and community impacts, presents the strongest case and offers the greatest strategic and economic benefits – providing around 40 new destinations from the airport and more than 70,000 new jobs by 2050”

Here comes trouble.

Zac Goldsmith, the Tories’ star mayoral candidate, confirms this morning that he will resign his seat if the government presses ahead with with recommendations. “It’s a pledge of course I’d honour,” he tells LBC:

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Boris meanwhile tells the BBC “my services as a bulldozer blocker won’t be required” because a new Heathrow runway simply “isn’t going to happen”.

David Cameron would avoid all this if he kept his 2009 promise: “No ifs, no buts, there’ll be no third runway at Heathrow”. Good timing for the first Tory mayoral hustings on Saturday…