Resigning on 7 July after a mass resignation among his own party, Johnson is said to have rushed back from the Caribbean upon hearing the news of Truss’ resignation, reports news agency Reuters. Though he never announced his candidacy, on Sunday 23 October, Johnson said that though “there is a very good chance that I would be successful in the election with Conservative Party members,” he had “sadly come to the conclusion that this would simply not be the right thing to do. You can't govern effectively unless you have a united party in parliament.”
Party leadership candidates need to gather the support of 100 lawmakers to be able to get on the ballot for the position, which leads to the premiership.
Rishi Sunak, who had lost against Liz Truss during the last ballot of party members, even though he was favourite among Tory MPs, is likely to take up the position, having secured 142 declared supporters by Sunday evening. Penny Mordaunt, the other Conservative candidate, only had 24 declared supporters.