The fortnightly Opinium poll for the Observer is out tonight. Topline figures are CON 30%(+2), LAB 36%(+4), LDEM 7%(-3), UKIP 16%(-5).

The sharp fall in UKIP support probably isn’t meaningful at all, the Opinium poll a fortnight ago had them jumping five points to a rather incongruous 21%, today’s poll is probably just a reversion to the mean. For those looking for a “Carswell effect” don’t look here: the fieldwork for this poll started on Tuesday, so most of the responses probably came before his defection.