Number 10 Downing Street special advisor Dominic Cummings leaves 10 Downing Street in central London on May 24, 2020 following allegations he broke coronavirus lockdown rules by travelling across the country in March. - British Prime Minister Boris Johnson on Mat 24 defied pressure from within his own party and backed top aide Dominic Cummings over allegations he breached coronavirus lockdown rules. (Photo by Isabel Infantes / AFP)