Sir, The Office for Budget Responsibility forecasts the outlook for the UK economy and the public finances; these forecasts have been adopted by the chancellor as the government’s own. They contain an allowance of almost £250 million per week — not £350 million — for funding that could in principle go to the NHS rather than the EU. But this would involve no state support for any other activities, such as subsidies for agriculture, that are at present funded in the UK by the EU.

The bigger picture is that the forecast health of the public finances was downgraded by £15 billion per year — or almost £300 million per week — as a direct result of the Brexit vote. Not only will we not