It turns out that the result of the Survation online poll the other day was not a fluke, because a new telephone poll from the same firm tonight shows exactly the same thing - that the Tory lead has been virtually wiped out.
GB-wide voting intentions (Survation, telephone fieldwork) :
Conservatives 41.5% (-1.6)
Labour 40.4% (+3.1)
(Other parties' vote shares not available yet.)
It's important to stress that these figures do not in any way represent the start of a new polling consensus - they're instead the extreme Labour-friendly end of a spectrum that stretches all the way to a 12-point Tory lead with ComRes, which if correct would translate into a three-figure landslide majority for Theresa May. There is no sign at all that the more Tory-friendly pollsters are about to converge with the others - the most recent ICM and ComRes polls both showed a very stable picture. So unless there is a decisive swing back to the Tories over the coming days, it looks very possible that we will go into polling day with some firms pointing to a hung parliament, others pointing to a Tory landslide, and perhaps a third group suggesting a middling Tory majority. If so, we literally won't have a clue what is going to happen until Big Ben strikes 10 and the exit poll is revealed - although admittedly we're not exactly short of establishment commentators who claim to already know for sure that ICM and ComRes are right, and that "it's over".