Here is a funny thing, perhaps a very important thing. @theresa_may knows her favoured backstop to keep UK in a customs union comes with EU strings - namely sticking to EU rules on workers’ rights, consumer standards and the environment, because EU insists there must be...
...a “level playing field” for trade between the UK and EU in return for giving UK the privilege of tariff-free and quota-free trade with EU single market. But that is precisely the deal @jeremycorbyn told Labour conference in Liverpool his party world support (see attached). 
So Labour and @jeremycorbyn would really be on hook to support May’s likely Brexit deal, if only she stopped calling it a “temporary” customs union. And if Tory true Brexiters scent a fiendish Downing St conspiracy, would any of you be surprised?!!!!!
