The Treasury has blinked. After months of internal wrangling and a looming backbench revolt, Rachel Reeves has confirmed a carbon tax rebate scheme. Sources tell me the Chancellor was forced into this position by a quiet mutiny from Labour MPs in the Red Wall. The rebates will target households in fuel-poor areas, but the real story is the split it exposes in cabinet.

Insiders say the Prime Minister was initially resistant. Starmer wanted a 'tough on climate' message for the international stage. But the polling data was brutal. Focus groups in Nuneaton and Burnley painted a grim picture. The word 'tax' was triggering. So the Chancellor engineered a pivot. Classic Treasury tactic: announce a rebate, frame it as 'progressive,' and hope the headlines shift.

But this is not a clean victory for the green lobby. The rebate scheme is means-tested and limited. Critics on the left say it doesn't go far enough. The SNP are already briefing they will push for a wider exemption. And the Conservative benches are smelling blood. Hunt's team are circulating figures suggesting the scheme will cost billions more than Treasury admits.

I am told the real battle is over the long-term trajectory. The Treasury's own economists have modelled two paths: one with the rebate as a permanent fixture, another where it is phased out after two years. The Chancellor wants the latter, but the Labour left is demanding a commitment to extend. This will be the next flashpoint.

What is not being said publicly: the Treasury is terrified of a German-style backlash. The AfD's gains on the back of fuel protests have spooked No10. Hence the swift U-turn. The Cabinet Office has prepared a rapid rebuttal unit to push the 'fairness' line. But the damage may already be done. Green groups have condemned the move as a climbdown. Business groups are confused.

My sense from Whitehall: this is a victory for the 'election first' faction. But it leaves Starmer exposed on credibility. He campaigned on a green industrial revolution. Now he is handing out rebates for carbon taxes. The irony is not lost on the Lobby.

One senior Labour strategist texted me: 'We can't win if we look like we're taxing the poor. But we also can't win if we look like we're weak on climate. Impossible.'

The next test: the Finance Bill committee stage. Backbenchers are gathering amendments. Watch for a rebellion from the Labour Environment Forum. They are furious. And they have the numbers to cause trouble.

For now, the Treasury has bought itself time. But in politics, time is a dangerous currency. Ask George Osborne.

Eleanor Rigby, Political Bureau Chief