Opinion polls still show the country divided down the middle on whether Brexit is a good thing or not.
There has been a bit of movement in favour of the referendum on the deal (it is worth noting that it always does better when accurately described in that way rather than as a second referendum). However, the really dramatic poll shift has been in the confidence of the government getting a good deal with two thirds now not confident. The dichotomy between those figures and the 50/50 split is striking.
To some extent, this may be wishful thinking on behalf of those who think that there is still a good deal out there somewhere and the Tories just can’t find it. However, it also likely reflects the dawning realisation that we have a desperately weak negotiating position. The main reason for this is that the UK has a terrible BATNA. In the jargon of negotiating theorists, a BATNA is your Best Alternative To a Negotiated Agreement. It is crucial because if your alternative isn’t too bad, you don’t have to give up too much and walk away easily if the price gets too high. On the other hand, if your BATNA is awful, you just have to make concession after concession, especially if you are negotiating with somebody who knows it. This is currently the position of the UK government.
The UK government’s stated BATNA is “no deal”. As a BATNA, this is terrible because everyone knows (a) that it would inflict terrible damage on the economy and require lots of new bureaucracy where we have borrowed our regime from the EU (e.g. on nuclear regulation) and (b) we haven’t done anything like the necessary preparation for it. So, to deal with point (b), the government is now being lobbied by Redwood et al to start spending vast sums of money on something which may well never happen. Leaving aside the politics of spending such sums at a time of austerity, it does nothing to deal with (a).