Number 10 Downing Street special advisor Dominic Cummings leaves his home in London on May 25, 2020 following allegations he broke coronavirus lockdown rules by travelling across the country in March. - British Prime Minister Boris Johnson on May 24 defied pressure from within his own party and backed top aide Dominic Cummings over allegations he breached coronavirus lockdown rules. (Photo by DANIEL LEAL-OLIVAS / AFP)