RACHEL Reeves dismissed the advice of one of her own advisers who called on her to maintain the £28 billion green pledge.
The Shadow Chancellor slapped down ex-Siemens boss Juergen Maier who yesterday warned the UK faces steep decline without investing at least £28bn a year on eco projects.
When asked by The Sun if she agreed with him, Ms Reeves sternly replied: "He is advising us on transport policy."
Mr Maier, who as recently as last month called for "much of Brexit" to be "undone", has taken up a role chairing a review of UK rail and transport infrastructure for Labour.
The Shadow Chancellor's comments came after she used a speech to 400 bosses at Labour's business conference to say her party won't hike the rate of corporation tax during its first term in Government.
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Ms Reeves said: "We will cap the headline rate of corporation tax at its current rate of 25% for the next parliament. And should our competitiveness come under threat, if necessary we will act."
She also vowed to maintain full expensing and the annual investment allowance for businesses and to publish a roadmap for business taxation within Labour's first six months in Government.
But the Shadow Chancellor faced a tough grilling by the media about the recent pledge not to restore the cap on bankers' bonuses and of weakening the £28bn green investment commitment.
The Sun reported last month Labour is ditching the scale of the spending on eco projects and that it will be formally announced in the days after the March's Budget.
The initial pledge to splurge the £28bn had already been scaled back following a row over funding.
Pressed about the potential U-turn, Ms Reeves said her "number one commitment is to fiscal and economic stability".
She then appeared to reject the idea that pledging the £28bn was a mistake.
The Shadow Chancellor insisted that when she made the announcement in 2021, she also announced Labour's fiscal rules and that "only subject" to those, they'd invest in things to grow the economy.
