Boris Johnson: Of course I want to be Prime Minister

London's Mayor says he wouldn't turn down the job of Prime Minister, adding that "of course" he would take on the top role if people wanted him to do it.

But, Boris Johnson said he didn't rate his chances of actually being asked to serve as Prime Minister:

"If, like the Roman leader Cincinnatus, I were to be called from my plough to serve in that office I wouldn't, of course, say No. But the chances of that happening are about as good as my being reincarnated as an olive. If people genuinely wanted me, of course I would want to do it."