Article content

LONDON — Boris Johnson, the Brexiteer who has promised to lead Britain out of the European Union with or without a deal by the end of October, will replace Theresa May as prime minister after winning the leadership of the Conservative Party on Tuesday.

His convincing victory catapults the United Kingdom towards a showdown with the EU and towards a constitutional crisis at home, as British lawmakers have vowed to bring down any government that tries to leave the bloc without a divorce deal.

We apologize, but this video has failed to load.

tap here to see other videos from our team. Try refreshing your browser, or Boris to Britain: ‘We are going to rise and ping off the guy-ropes of self-doubt’ Back to video

Johnson, the face of the 2016 Brexit referendum, won the votes of 92,153 members of the Conservative party, almost twice the 46,656 won by his rival, Foreign Secretary Jeremy Hunt.

May will leave office on Wednesday after going to Buckingham Palace to see Queen Elizabeth, who will formally appoint Johnson before he enters Downing Street.

Photo by Dan Kitwood/Getty Images

“We are going to get Brexit done on Oct. 31, and we are going to take advantage of all the opportunities it will bring in a new spirit of ‘can do’,” Johnson, 55, said after the result was announced.

“Like some slumbering giant, we are going to rise and ping off the guy-ropes of self-doubt and negativity.”

Johnson said the mantra of his leadership campaign had been to “deliver Brexit, unite the country and defeat (opposition Labour leader) Jeremy Corbyn – and that is what we are going to do.”