Next Prime Minister UK LIVE: New PM will need backing of 100 MPs, says 1922 chief Graham Brady

LIVE

Liz Truss quits LIVE: Boris Johnson faces battle to get backing of 100 MPs to get back in as PM, as leadership contest rules announced – and if two manage that it will go to Tory members

Follow MailOnline’s live blog below for the latest updates as Liz Truss battles to save her career.