Liz Truss not only resigned as prime minister of England but also resigned from the chair of the British Conservative party leadership, I speculate that this has been planned for a long time.
Sunak has a rich wife, there are rumors that he has supported Sunak all this time. I don't know how politics in England is going, hopefully, with Sunak's rise to the chair of the British Prime Minister, he will be able to solve the crisis that the UK is currently facing.