A number of familiar names are being thrown around for PM as the UK gets ready for a week long leadership whirlwind.
Liz Truss' resignation signalled the end of the shortest term by any prime minister, followed a botched financial statement, the loss of two of her most senior Cabinet ministers and an open revolt by Tory MPs. The Conservatives are now scrambling to elect a replacement by the end of next week.
Allies of former leader Boris Johnson are pushing for him to make a return, less than two months after leaving office, while Rishi Sunak, who defeated Ms Truss among MPs in the last contest, is widely expected to stand.