... is looming large should a new PM push for a no-deal Brexit.
Some 30 Tory MPs are said to be considering supporting it, with more than a handful of current minsters expecting the sack or refusing to work under any no-deal PM. Labour have even said that they are actually talking to Tories to get the timing right. This is new, these things are usually done behind closed doors or denied.
And MPs, from both sides, are said to be looking at ways to finally remove no-deal off the books, but with no details of how.
So, we would get a general election and possibly another referendum, but what would either of those solve?
The only definite way out of this mess is to revoke A50 with a view to going again in the future.