LONDON: Efforts to unseat British Prime Minister Keir Starmer are likely to break out into open rebellion Thursday, with one potential rival expected to announce his bid for the job and another clearing the way for her to enter any future leadership contest.

PM makes series of policy pledges including seeking new deal with EU and says he will fight any challenge

British Prime Minister Keir Starmer's leadership is in jeopardy after his Labour Party suffered heavy defeats in local elections last week.