According to the newspaper, on June 20, Keir Starmer and his inner circle began drafting a speech in which the prime minister would announce his resignation

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.