D-Day is finally here. Like the rest of SW1, Mr S will be tuning into Dominic Cummings’ appearance at a Commons joint committee later today. Kick off is 9:30 a.m with four hours of theatrics expected to focus on his criticisms of the government’s handling of the Covid pandemic. The political editor of ITV Robert Peston revealed yesterday that the former chief special adviser will ‘not pull his punches’ and claim Johnson said ‘Covid is only killing 80-year-olds’ when justifying a delayed lockdown in the autumn.