11 Tory MPs have announced they are running for the job - which will also see them takeover as Prime Minister.
Spelthorne MP Kwasi Kwarteng is supporting Liz Truss in her leadership campaign.
Chelsea and Fulham MP Greg Hands has this morning given his support for former Chancellor Rishi Sunak, and Sutton’s Paul Scully has declared support for current chancellor Nadhim Zahawi.
A committee of backbench MPs will meet later to finalise rules for the race as well as a timetable.