Boris Johnson said his arguments to stay in power were rejected due to a “herd instinct” at Westminster and said it was “painful” not to be able to deliver on his plans.
He said: “In the last few days, I tried to persuade my colleagues that it would be eccentric to change governments when we’re delivering so much and when we have such a vast mandate and when we’re actually only a handful of points behind in the polls, even in midterm after quite a few months of pretty relentless sledging and when the economic scene is so difficult domestically and internationally.
“I regret not to have been successful in those arguments and of course it’s painful not to be able to see through so many ideas and projects myself.
“But as we’ve seen, at Westminster the herd instinct is powerful, when the herd moves, it moves.
“And my friends in politics, no one is remotely indispensable and our brilliant and Darwinian system will produce another leader, equally committed to taking this country forward through tough times.”