Rishi Sunak is facing the threat of a by-elections nightmare as an exclusive poll put Labour eight points ahead of the Tories in the most high-profile of six looming contests - in Boris Johnson’s ex-constituency in London.Labour’s Danny Beales is on 41 per cent in Uxbridge and South Ruislip and Conservative Steve Tuckwell 33 per cent, according to the survey by JL Partners.
