British Prime Minister Boris Johnson survived a confidence vote on Monday but a large rebellion in his Conservative Party over the so-called "party gate" scandal dealt a blow to his authority and leaves him with a struggle to win back support.

Johnson, who scored a sweeping election victory in 2019, has been under increasing pressure after he and his staff held alcohol-fuelled parties in his Downing Street office and residence when Britain was under lockdowns to tackle the Covid-19 pandemic...