Each of the parties want their own way and within them the members want their own way. The decision made as a result of the Brexit vote is legal whereas all the votes taken in the Commons over the past couple of weeks have no legal standing. But, again the parties all want their own way so mo challenge is going to happen. As for SNP,I do chuckle at them with all their objections as after all, if their referendum had been for independence they would already be out of the EU with no deal. I am so fed up with it I hope the EU just tell us to go jump and we have to make an actual decision. Politics aside Mrs May must have enormous stamina given the schedule she has had recently.