indeed - many a spaff over the hardness of mogg pulling out of Europe from the ERG
The main issues stopping May getting the votes she needs for this deal seem to be those raised by:
(a) The Brexiteers. i.e. the fear of tieing us in to the CU in perpetuity because you need both sides to agree that we can leave the arrangement.
(b) The DUP because they see the 'deeper alignment' of NI with EU rules - the additional livestock and food checks for product going over the Irish sea - as a red line.
Both situations only come about if a trade deal cannot be agreed by the end of the transition period. Both sides have said that they will use their best endeavours to avoid that situation. They have also said that if it should arise then the transition period can be extended - but only once.
Labour front bench will object to it in any scenario. But there may be a good number of back bench Labour MP's who if they aren't looking to accept the deal now, may do if it can be amended.
If May can get some amendment to the 'both sides agreeing' bit and to limit the Irish Sea produce checks to what is already in existence. Then those arguments should, for the most part be resolved.
The EU have said the deal can't be changed but the Spanish and French have indicated that they want wording changed.
If that is possible for Spain and France then they can do it for the UK. There must be some room here.
I think there is a possibility that May, who is going to meet Juncker tomorrow will be trying to tweak the deal along those lines.
An eleventh hour thing to get it over the line.