The Budget was thrown into chaos after an “unprecedented” leak of its contents hours before the Chancellor delivered her statement.

Rachel Reeves said the Office for Budget Responsibility 's (OBR) accidentally releasing its forecasts before she revealed her Budget was "deeply disappointing".

The watchdog confirmed the Chancellor would be increasing taxes by £26billion in 2029-30 before MPs were told in the House of Commons.

Deputy speaker Nus Ghani also rebuked Treasury ministers for pre-Budget briefings to the press, which she said appeared to "have reached an unprecedented high".

Raising a point of order, shadow chancellor Sir Mel Stride told the Commons: "We have seen an unprecedented leak of the OBR's economic and fiscal outlook report before the Budget.

"This report contai

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