Last month, 50 per cent of our panel said that the Prime Minister should resign as Party leader now, 30 per cent before the next election is due in 2022. Eighteen per cent backed her staying on.

In very rough terms, two thirds of that 30 per cent seem to have have swung behind Theresa May in this special survey, and a third to have done the opposite.

Obviously, it’s a shocking result when almost two-thirds of your own activists oppose you, but the Prime Minister can take some comfort in winning the support of over a third – and in the result of the forced choice that this survey presented.

None the less, if Downing Street is pumping claims of membership backing at Conservative MPs, it won’t be able to cite this survey as evidence.  Not long now until we have a proper result.