She will make appointing a cabinet minister to take charge of Brexit one of her first tasks as she enters No 10 as Britain's second female PM. May will seek to calm the country, and the financial markets, after upheaval following the unexpected result in the June 23 referendum.
It has now been retweeted thousands of times - in countries all over the world. He is succeeded by former Home Secretary Theresa May and will remain as Member of Parliament for Witney in Oxfordshire. Central to that vision is a commitment to equality, and I will always stand up for the rights of LGBT people.
While she might be characterised as "socially illiberal", Lee said, May set out on Monday an economic programme as prime minister-in-waiting that was particularly left-leaning. Her speech listed pay equality, cost of housing, low wages growth and healthcare for the mentally ill as key issues her government needed to tackle. Larry later became the first official Chief Mouser of the residence.
"Politicians like to talk about policies but in the end it is about people's lives". We will do everything we can to give you more control over your lives. But much of her track record suggests she is liberal Tory in the same mould as her predecessor.
It is not known to where the Camerons will move as their home in North Kensington has been occupied by tenants since 2010, though they are expected to move to their constituency home in Dean, Oxfordshire.
Andrea Leadsom, whose shock withdrawal from the leadership race meant the expected nine-week leadership campaign was truncated to just a couple of days, is expected to be offered a job in recognition of her raised profile. And it also made a powerful and important statement that as a country we value and respect everyone.
While the British Labour opposition is in disarray, Mrs May has ruled out an early election.
Mr Cameron told MPs he had clocked up 5,500 questions during his six years as prime minister, joking that he would leave it to others to decide how many he has answered.
She follows in the path of Margaret Thatcher, who held the post from 1979-90.
David Cameron has signed off his final Prime Minister's Questions telling MPs: "Nothing is impossible".
Before heading to tender his resignation, Mr Cameron will confront his last Prime Minister's Questions in the Commons. "It has been a privilege to serve the country I love", he told the media. "He was the future once".
But the rapid departure poses logistical challenges for Mr Cameron and his wife, Samantha, including the question of where to live.
Sheffield MP Louise Haigh called on the new prime minister to urgently reverse civil service cuts in the city ahead of complex negotiations over Britain's exit from the European Union.