My test for today’s Budget was could it have been delivered by Rachel Reeves? Was there really going to be an important difference between what a brave, bold Conservative Chancellor would do and what a cautious, brown eyed Socialist Chancellor would do? And yes, there was one important difference. That was the cut in National Insurance, the 2 per cent off, reducing it to 8 per cent and with the implication that it may be abolished altogether, which is a really very important implication and would be a fundamental change and improvement in our tax system. But overall the budget was constrained …