East Kilbride’s Conservative MSP says the Prime Minister’s chief advisor should leave his role in government.Graham Simpson was speaking out after Dominic Cummings’ unprecedented and bizarre press conference on Monday where he defended his actions.Often referred to as ‘the brain’ behind Boris Johnson, Cummings justified his decision to make a 260-mile trip to his parents house to self isolate despite he and his wife showing symptoms of coronavirus.Not only did his actions take place at the very start of lockdown, but the couple travelled with their young son, who had not shown any symptoms, in the car.Mr Simpson told the News: “I don’t know him so my judgement is based only on what I have seen and heard, just like everyone else.“We have all