Piers Morgan called for Dominic Cummings to sacked in view of his 7.5 million Twitter followers today.The Good Morning Britain presenter said if Boris Johnson does not "fire" him, then he is off to visit his family.The 55-year-old said he would deem "lockdown over" if the Prime Minister doesn't take drastic action towards his top adviser.It comes after Cummings was spotted at his parents' home in Durham - more than 250 miles away from his home in London - days after he was said to have started self-isolating.The 48-year-old was investigated by the police after breaching the Government’s own lockdown rules, according to reports.An investigation by the Mirror and the Guardian said he was in the North of England, instead of isolating in the.