I’ve been thinking how this will all end, and to my surprise realise that there is one reasonably straightforward way through this mess, consistent with all the leading British politicians’ stated and apparent priorities. That is:
1 the new Conservative Prime Minister does go to Brussels to successfully renegotiate the withdrawal agreement. Specifically, the offer is to redraw the backstop so that it applies to Northern Ireland only. This should work for the EU, since it is what they originally wanted, and is better for the EU and member states than the alternatives, which are Britain crashing out with no deal, another aimless extension of the article 50 process, or worst of all a cynical revocation of the article 50 notice in bad faith. (Note that anything other than an enthusiastic revocation based on a decisive second referendum is much worse for the EU than the UK - a bad faith revocation is really difficult for the EU to handle.)
2 clearly this antagonises the DUP, but that doesn’t matter. There will be some backbench Tories who are unhappy, but few will be so unhappy that they oppose Brexit because of it. Conversely, it should bring the ERG on board, and puts Labour into a corner. What might Labour do?
3a one way or another sufficient Labour MPs vote for the revised withdrawal agreement so that it passes. The new Conservative Prime Minister is the hero of the leavers, and can call a general election early in the transitional period (which Parliament can hardly refuse) with a good chance of winning a working majority (since none of the bad impacts of Brexit will have happened then, indeed there will probably be some good news simply because of the end of the uncertainty).
3b Labour opposes the revised withdrawal agreement, and we crash out with no deal on 31 October. It’s a mess, and Labour “is to blame for not supporting the withdrawal agreement”. The new Prime Minister is the hero of the leavers, and can call an emergency general election (which Parliament can hardly refuse) with a good chance of winning a working majority “to repair the damage which Labour has done”.
3c Labour opposes the revised withdrawal agreement, and forces a referendum and extension through Parliament (which the EU would probably reluctantly support). The new Prime Minister is the hero of the leavers, and can campaign on his revised withdrawal agreement “which delivers the will of the people”, with a good chance of winning. Also, as the hero of the leavers, he calls for an emergency general election, campaigning to stop the referendum and to Brexit in line with the new withdrawal agreement, with a good chance of winning a working majority “to defeat the enemies of the people”.
3d Labour opposes the revised withdrawal agreement and somehow Parliament forces through the revocation of the article 50 notice. Doesn’t seem likely, but again the new PM is the hero of the leavers and can probably win the inevitable general election. Then chaos ensues when Britain leaves the EU anyway.
All of these scenarios see the Conservatives winning the next general election. Most likely with the proposed revised withdrawal agreement, which gives them breathing space to come up with sensible policies during the transitional period having won a subsequent general election. Which could cover anything from an eventual hard Brexit, to not leaving at all, with plenty of scope for their new leader to claim all the credit. Not getting the revised withdrawal agreement through would be worse for the country, but in all scenarios the blame could be pinned on Labour.
Clearly, this relies on the new Conservative leader taking this approach, but it does seem quite feasible for one of the “sensible” idiots (say Johnson, Hunt or Gove) rather than one of the psycho idiots (Raab) or plain stupid idiots (Leadsom).
It also relies on the nation being content to weaken the union with Northern Ireland. Despite some bluster so far, the one thing I am sure about is that maintaining strong links between the constituent parts of the UK is low down on leavers’ list of priorities.
Given Corbyn’s current positioning, there isn’t much Labour could do to successfully oppose this. Absent a leadership challenge as soon as possible, and preferably yesterday, with a new Labour leader campaigning vigorously for a second referendum and remain, then exiting on such a revised withdrawal agreement seems inevitable.
Personally, I would be content with such an outcome. I think if Britain enters a transitional period which broadly matches our current membership of the EU, then we will never actually fully leave.