It is unclear what announcement will be made.

UK PM Keir Starmer expected to announce resignation Monday. Resignation by June 30 at 91.5% YES.

The Observer newspaper said Prime Minister Keir Starmer concluded his position was no longer tenable after speaking to Cabinet ministers, advisers, donors and trade union leaders.

British prime minister Keir Starmer is expected to announce his resignation on Monday and outline a timetable for his departure, The Observer reported on Saturday.