British Prime Minister Keir Starmer was struggling to hold on to power after his main rival in the government resigned on Thursday, accusing him of political drift, and others positioned themselves for potential challenges to his leadership.

Disastrous results for the governing Labour Party in local elections last week have plunged Britain into a new crisis, just under two years after Starmer won a large majority on a vow to bring stability and ?end a decade of political chaos.

After days of calls by Labour lawmakers for Starmer to quit or set out a timetable for his departure, Wes Streeting ?resigned as health ?minister, the first senior minister to break cover. He said he was standing down because "it is now clear you will not lead ?the Labour Party into the next general election."