The London Mayor is sharpening his knives for the long-delayed third runway – but is this a matter of policy or political manoeuvring?

Rachel Reeves has told London Mayor Sadiq Khan she is certain to defeat his bid to sabotage her Heathrow expansion scheme. Asked if Mr Khan was able to stop to her third runway plan, the Chancellor replied: ‘No.’ The capital’s Labour mayor could mount a legal challenge, she said, but he would not prevail in the end.

Sadiq Khan has vowed to block the third Heathrow runway "with any tool in the toolkit" in a rift with the government after Rachel Reeves said she would back plans.

Labour backlash over Heathrow as Sadiq Khan and MPs hit out at 'hugely damaging' 'mistake’ - Energy secretary Ed Miliband, who threatened to resign from Gordon Brown’s government over expansion of the west London airport,

Reeves made an announcement on Heathrow during a major speech outlining Labour's plans to deliver economic growth.

Heathrow expansion would undermine London's 'clean air' progress - The mayor also cast doubt on the project’s economic benefits and said it would worsen noise levels suffered by west Londoners

Stars align for Heathrow third runway but Supreme Court may put the fast-warming planet first - Commentary: The battleground on expansion of the west London airport will be climate change not air poll

Londoners strongly support Heathrow building a third runway, a poll has shown, as the Government faces a row with Sadiq Khan over the plan. More than half of people in the capital (56%) surveyed said they were in favour of the expansion, which Chancellor Rachel Reeves on Wednesday announced the Government would back.

London mayor Sadiq Khan 'remains opposed' to a third runway at Heathrow, amid rumours of tension within the Labour party over the plans.

Heathrow's third runway can be built and operating in a decade's time, Chancellor Rachel Reeves has said. Reeves told the BBC she wanted to see "spades in the ground" in the current Parliament and planes to start using the runway by 2035.

There are differences in opinion among Labour big beasts over the policy that's promising to deliver long overdue economic growth.