Theresa May becomes new British Prime Minister

10 Downing St. on Wednesday as Britain's new prime minister, following a bittersweet exit by David Cameron that was tinged with humor and regret.

In his final Prime Minister's Questions at Parliament, outgoing Prime Minister David Cameron opened Wednesday with the quip that "apart from one meeting in the afternoon with the Queen, my diary is remarkably light".

By awarding such a senior job to Johnson, she also showed a conciliatory side.

May's new Cabinet includes many new faces but surprisingly Boris Johnson as foreign secretary.

Britain's Prime Minister, Theresa May, watched by husband Philip, speaks to the media outside number 10 Downing Street, in central London, Britain July 13, 2016.

Yet when Cameron announced his resignation after the referendum, Johnson's hopes of succeeding him as Conservative Party leader were undermined by another Brexit supporter, Justice Secretary Michael Gove, who threw aside his support for Johnson and announced his own candidacy.

Liz Truss, the previous environment secretary, replaced Gove as justice secretary and Justine Greening, who had been the secretary for worldwide development, was named the new education secretary.

The shuffle signals that May values social mobility and self-made successes. And since last month's vote, for which he campaigned vigorously, Johnson had suffered widespread criticism and ridicule for failing to present a clear Brexit plan and swiftly dropping out of the leadership race. But his appointment as foreign secretary caused some consternation around the world. The blond, Latin-speaking Johnson - a leader of the campaign for a British exit, or Brexit - had aspired to be prime minister himself before his bid failed because of party infighting. He is internationally famous - but for rumpled eccentricity, Latin aphorisms and distinctly undiplomatic gaffes.

The White House is pushing back on suggestions that her selection of Boris Johnson as foreign minister will be problematic for the U.S. Johnson had previously described Obama as a "part-Kenyan" who had an "ancestral dislike of the British empire". Asked whom he would apologize to first, he said "the United States of America will be at the front of the queue".

European Council president Donald Tusk said he looked forward to a "fruitful working relationship". But it said it was likely to deliver a stimulus in three weeks' time to support the economy, once it has assessed the fallout from the June 23 vote. His idol is Winston Churchill, another politician who was underestimated before rising to become Britain's World War II leader. "There may be some mishaps".

The man charged with leading Britain out of the bloc though will be Mr Davis, 67, a staunchly Eurosceptic lawmaker who worked in Britain's foreign office from 1994 to 1997, with responsibility for negotiations with Europe. "And we will make Britain a country that works not for a privileged few but for everyone of us".

EU president Donald Tusk was among the first to congratulate May, who will have the tricky task of overseeing her country's departure from the European Union after Cameron resigned following last month's shock Brexit referendum result.

Hollande also pressed May not to delay the divorce discussions, which can only begin once Britain has triggered the bloc's Article 50, the formal process for withdrawing from the EU.

Juergen Hardt said in a statement Thursday that, for example, "free access to the common market means, among other things, accepting other fundamental freedoms such as the freedom of movement" between European countries. But he accused May of putting a desire to unite her deeply divided Conservative party ahead of concerns about Britain's future.

"The outcome of the United Kingdom's referendum has created a new situation which the United Kingdom and the European Union will have to address soon", Juncker said in a letter published on his Twitter account.

Hammond acknowledged that the Brexit vote has had "a chilling effect" on investment, saying "the No. 1 challenge is to stabilize the economy, send signals of confidence about the future". He said: "Her Cabinet reflects her speech on the steps of Downing Street which is to be a Britain that works for everyone and real people that reflect Britain".

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