The debate around the so-called 'WTO rules' has begun to dominate the Brexit conversation as much as the 'no-deal' and 'Irish backstop.'
Prominent Brexiteer Jacob Rees-Mogg, has been banging the WTO drum for some time now and he returned to that rhetoric on Tuesday in response to Theresa May's withdrawal agreement returning to the Commons in a few weeks.
As his fellow Tory MP Andrea Jenkyns discovered trying to explain the appeal of 'WTO rules' and why Britain should opt for them has proved difficult thus far and people were quick to ask Rees-Mogg this very question.
Of course, many mentioned Rees-Mogg's various indecisions, investments and claims about Brexit.
Of course, there were many Brexiteers who agreed with Rees-Mogg but even they are yet to see how a WTO Brexit would actually transpire.