Here's everything you need to know...
The Conservative leadership race has dominated the past two months, and following the big vote spread over the past two and a half weeks, the next UK Prime Minister has been announced, and it’s Boris Johnson.
Theresa May who is standing down, following the backlash from her Brexit policy, is finishing off her final duties as PM today, from her last cabinet meeting to her final Prime Minister’s Questions, before tendering her resignation to the Queen tomorrow afternoon.
The Queen, who is delaying her holidays for the appointment of the next Prime Minister, will then meet Boris Johnson tomorrow to welcome him onboard.
160,000 of the Tory Party’s members voted yesterday, with the results closing in the evening. The results were announced at midday today.
Boris’ appointment is a controversial one, with several ministers stepping down from their positions in protest, with Sir Alan Duncan resigning and Philip Hammond saying he too would leave his post if Boris was elected.
More ministers are expected to resign.
Boris Johnson will become the next Prime Minister on Wednesday.