Rachel Reeves is on course to tighten Whitehall public service budgets further than expected in the spending review because of the worsening economic outlook, Sky News can reveal.. This will pit the chancellor against some ministers who already claim she is sacrificing the manifesto promises they are expected to deliver – which will no longer be possible on tight budgets – so that she can fulfil her promises. The chancellor committed in the budget to pay for day to day government spending through taxation rather than borrowing, something that has not been achieved for decades.