Why has Keir Starmer resigned as UK prime minister? UK Prime Minister Keir Starmer has announced his resignation after just two years in office.Share this: UK Prime Minister Keir Starmer announces resignation planDateJune 22, 2026In relation toAl-JazeeraPrime Minister Keir Starmer expected to announce exit plan: UK mediaDateJune 22, 2026In relation toAl-JazeeraUK Prime Minister Keir Starmer says he will resignDateJune 22, 2026In relation toAl-Jazeera