Boris Johnson is facing sustained pressure to sack his key aide Dominic Cummings following allegations he breached coronavirus lockdown restrictions. The Prime Minister will discuss the easing of measures at a Cabinet meeting on Monday, but the political storm over his chief adviser’s trip looks set to overshadow any announcements. Mr Cummings travelled to County Durham in March to self-isolate with his family – apparently because he feared that he and his wife would be left unable to care for their son – while official guidelines warned against long-distance journeys.