Keir Starmer announced his resignation as Prime Minister of the United Kingdom in an emotional address from Downing Street on Monday. He stated a new leader will be in place no later than September. Starmer asserted he is leaving the country in a stronger and fairer state than when he assumed office two years prior. The announcement marks a significant shift in British politics, prompting speculation regarding potential successors and future policy directions. Details regarding the leadership contest and timeline for selecting a new Prime Minister are expected to be released shortly. His departure follows a period of [information not provided in text - implied political activity]. The resignation speech signaled a reflective tone, emphasizing positive changes achieved during his tenure.