No 10 refurb row: Grieve calls Boris Johnson ‘vacuum of integrity’

Former Tory attorney general piles pressure on PM demanding to know how residence revamp was funded

The former attorney general, Dominic Grieve, has described Boris Johnson as a vacuum of integrity" as the prime minister came under pressure to explain how the refurbishment of the Downing Street flat was paid for following an explosive attack by his former chief adviser Dominic Cummings.

The government has said Johnson paid for the refurbishment, reportedly costed at 58,000, but in an explosive blog post, Cummings claimed the prime minister had sought outside funding from Conservative supporters.