British Prime Minister Keir Starmer is facing a leadership challenge within the Labour Party following a disastrous performance in the recent local elections, where the party lost over 1,400 council seats, marking its worst showing since 1995. Labour MP Catherine West has threatened to trigger a leadership contest if no alternative candidate emerges by Monday, expressing her desire for a smooth transition without a divisive contest. Currently, West has the backing of around 10 MPs, but she anticipates that support will grow after her public statements. The party is experiencing internal strife, with over two dozen MPs calling for Starmer to resign, although there is division regarding a potential successor. Names like Wes Streeting, the Health Secretary, and Andy Burnham, the Mayor of Greater Manchester, are being discussed, though Burnham's ineligibility complicates matters. In response to the electoral losses, Starmer has appointed former Prime Minister Gordon Brown and veteran Labour leader Harriet Harman as advisers to stabilize his position. Starmer is expected to deliver a “reset” speech to address the situation, but West has expressed skepticism about whether this will suffice to quell the growing dissent within the party.