Its an unpopular proposition - unlike wealth taxes or action on climate change - the two previous referenda on the issue have been defeated by almost 70% opposition each time, and any future referendum is likely to have the same result. So of course, she has been talking up the possibility of politicians conspiring to do it via a supermajority, rather than taking it to the people. Fortunately, National has now shitcanned that idea, so if she wants it to happen, she will have to ask us, and risk the humiliation of defeat. Hopefully that prospect will deter it, as it has deterred her predecessors. If not, well, it seems like a pretty funny thing for a Labour politician to want to die in a ditch over.