If Natalie Elphicke’s defection had much of an effect on the mood of Tory MPs at today’s Prime Minister’s Questions, it was largely to leave them looking a bit baffled. Their former colleague was not a clear candidate to cross the floor to Labour. Labour MPs looked a bit confused too, in fairness, having previously seen Elphicke as a bit of an oddball of a very different political persuasion to theirs.