Boris Johnson has emerged the new Conservative leader in a ballot of party members and will become the next UK prime minister.
He beat Jeremy Hunt with 92,153 votes to 46,656.
The former London mayor will take over from Theresa May tomorrow.
In his victory speech, Boris Johnson promised he would “deliver Brexit, unite the country and defeat Jeremy Corbyn”. “We are going to energize the country.
“We are going to get Brexit done on 31 October and take advantage of all the opportunities it will bring with a new spirit of can do.
“We are once again going to believe in ourselves, and like some slumbering giant we are going to rise and ping off the guy ropes of self-doubt and negativity.” He said’’
He also thanked his predecessor, saying it had been “a privilege to serve in her cabinet”. He was Mrs. May’s foreign secretary until resigning over Brexit.
The outgoing PM – who is standing down after a revolt by Conservative MPs over her Brexit policy – congratulated her successor, promising him her “full support from the backbenches”.
Meanwhile USA President Donald Trump at an event in Washington told the gathering that “a really good man is going to be the prime minister of the UK now,” and Johnson would “get it done”, referring to Brexit.
The president added: “They call him Britain Trump. That’s a good thing.”
Almost 160,000 Conservative members were eligible to vote in the contest and turnout was 87.4%.
Mr Johnson is expected to begin announcing his new cabinet on Wednesday, but it has already been confirmed that Mark Spencer, MP for Sherwood in Nottinghamshire, will become chief whip – the person responsible for enforcing party discipline in the Commons.
A number of senior figures have already said they will not serve under Mr Johnson, though, citing their opposition to his stance on Brexit.
He has pledged the UK will leave the EU on 31 October “do or die”, accepting that a no-deal exit will happen if a new agreement cannot be reached by then.
Education Minister Anne Milton tweeted her resignation just half an hour before the leadership result was due to be revealed, insisting the UK “must leave the EU in a responsible manner”.
And International Development Secretary Rory Stewart confirmed he would be returning to the backbenches, where he would be spending more time “serving Cumbria” and “walking”.