Both May and Johnson will head to Buckingham Palace on Wednesday — one to resign as Prime Minister and one to be anointed new British leader.
Vowing to quit the EU by October 31, he attacked the "doubters, doomsters, gloomsters" who warn over the economic impact of a no-deal Brexit.
Theresa May will step down next week after her successor is announced, following a Conservative membership ballot.
In a final that left fans on the edge of their seats, England drew with New Zealand but secured their victory by virtue of scoring more boundaries.
Boris Johnson in pole position to become the next UK Prime Minister and already is at the centre of a diplomatic storm. His underwhelming endorsement of Kim Darroch is believed to be a factor in Darroch's decision to resign as the British Ambassador to Washington.
Britain's Prime Minister Theresa May thanked Sir Kim Darroch for his "lifetime service" to the UK on Wednesday after the Foreign Office announced he had resigned as ambassador to the US following a diplomatic cables leak.
British Prime Minister Theresa May on Wednesday took questions in Parliament at one of her last PMQs in office.
Russia must end its"irresponsible and destabilising activity" if relations between the two countries were to improve, May told Putin during a tense meeting at the G20 summit in Japan.
Boris Johnson and Jeremy Hunt were answering questions from voters at a digital hustings streamed online.
Jeremy Corbyn challenged the prime minister about the sale of weapons to Saudi Arabia, which is engaged in the war in Yemen.
Boris Johnson extends lead in the race to succeed Theresa May.
Boris Johnson is the clear favourite to enter 10 Downing Street after the first round vote for a new Conservative Party leader.
"Tory leadership race is a total horror show'" said SNP's Ian Blackford during PMQ's on Wednesday.
No longer party leader as of 7 June 2019, May will officially step down as prime minister during the week of 22 July. With the leadership candidates all demonstrating vastly different opinions regarding Brexit, there is still a great deal of uncertainty about how the next few months will play out.
This week the left-wing had a good week as the Social Democats swept the polls in Denmark, new MEPs continue to arrive in Brussels, we me a doctor who treated migrants arriving in Lampedusa and we also look ahead to next week.
At a ceremony in Ver-sur-Mer, the UK Prime Minister and the French President paid tribute to those who gave their lives in Normandy 75 years ago.
Captain Skinner was one of the hundreds of thousands of troops to cross the Channel on D-Day. He died on June 7, 1944.
How Britain launched the Brexit process after the 2016 referendum, but has since failed to find the exit door.
Those blaming May for not showing more emotion earlier in her time in Downing Street should ask themselves what they would have said if she actually had. In Britain, we can only let the mask slip as we leave. We must maintain the poker face until we fold.
On the eve of his state visit to the UK, Donald Trump said Britain should send Nigel Farage to negotiate Brexit and “walk away” if it doesn't offer a deal.
When historians open their laptops and look back at the latter half of the 20th century and the beginning of the 21st, one of the key psephological trends they will notice is the decline of the two main political parties’ vice-like grip on the electoral system.
May announced her departure date on Friday after angering senior figures in her party with her latest plan to deliver Brexit.
The race to be the UK's next prime minister has begun after an emotional Theresa May announced she will resign as Conservative Party leader on June 7
From jigging to jeers: Theresa May's funniest moments
The elections are upon us - and the motto of the Parliament's campaign is 'this time I'm voting' - they have the support of celebrities to get the vote out, but we look at voter turnout on a downward spiral and how Brexit will affect the new hemicycle.
While they lined up to praise her determination and courage, it was clear Brexit was never far from their minds.