But on Monday, May`s only remaining rival to replace Cameron -- Energy Minister Andrea Leadsom -- pulled out of the race following controversy over comments she made about motherhood and leadership.
"Obviously, with these changes, we now don`t need to have a prolonged period of transition. And so tomorrow I will chair my last cabinet meeting. On Wednesday I will attend the House of Commons for prime minister`s questions. And then after that I expect to go to the palace and offer my resignation. So we will have a new prime minister in that building behind me by Wednesday evening," Cameron told reporters outside 10 Downing Street on Monday.
The vote between May and Leadsom was supposed to go to the wider Conservative Party of 150,000 people, but being the sole candidate, May appears to have sidestepped the party rule.
Cameron welcomed Leadsom`s decision to drop out of the race, and said he was confident that May would steer the country in the right direction, calling her "strong" and "competent," and offering her his full support.
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