Labour leader Keir Starmer called for an independent commission on ethics in government after Boris Johnson's former top adviser criticised the prime minister's integrity. 'Every day there's more evidence of this sleaze. And frankly, it stinks," Starmer said.

In an explosive blog post published on Friday evening, Dominic Cummings accused Johnson of attempting to quash a leak inquiry because it implicated an ally, and hatching a 'possibly illegal' plan for donors to renovate his flat. 'It is sad to see the PM and his office fall so far below the standards of competence and integrity the country deserves,' Cummings wrote.