Sadiq Khan MP, Labour’s Shadow Minister for London, said:

“The fact that Boris Johnson is so openly campaigning to replace David Cameron shows just how weak the Prime Minister has become.

“Rather than tackling the rising cost of living the Tories are turning in on themselves, jockeying for position in a future leadership contest.

“When Boris Johnson should be fixing London’s desperate housing crisis, he will instead be spending the next two years campaigning to be an MP and Tory Leader. He will be a lame duck Mayor who has put his personal ambitions above the needs of the hard working Londoners he was elected to serve until 2016.”