After 30 consecutive losing Newspolls, knives are out for Prime Minister Malcolm Turnbull. Peter Dutton, Scott Morrison, Julie Bishop and Josh Frydenberg now say they’re up for the top job if it becomes vacant. Tony Abbott’s restoration can’t be ruled out. Barnaby Joyce, in saying Mr Turnbull should do the honourable thing and resign if the government isn’t competitive with Labor by Christmas, merely reflects what many Liberal supporters are saying.