Some quick thoughts on Sam Gyimah's resignation after conversations with various Conservative MPs: 1) the chances of a second referendum are a lot higher than I thought:

2) At this point, if you are a young and ambitious Tory MP it is now so overwhelmingly in your interest to vote against the withdrawal agreement. V v hard to see how Julian Smith can cap rebellion at under 100:

3) Really just to reiterate 1) Gyimah is the kind of "No, never gonna rebel" vaguely pro-EU Tory you'd need to get on side to outweigh Labour Leavers and Real Concerners.