The British pound fell to approximately 1.3200 against the US dollar on Sunday as markets reacted to reports that UK Prime Minister Keir Starmer will announce his resignation on Monday, triggering a leadership contest within the Labour Party.
Market Snapshot
GBP/USD traded at 1.3208 on June 21, down 0.17% from the previous session. The pound has weakened 1.68% over the past month and is down 2.33% over the last 12 months. Sterling touched lows near 1.3200 during Asian trading hours as investors assessed the political upheaval.
The US dollar gained strength alongside the pound’s decline, as market participants weighed British political instability and cracks emerging in US-Iran peace negotiations.
Event Details
Starmer is expected to resign on Monday, June 22, and outline a timetable for his orderly exit, according to Britain’s Observer newspaper. The announcement comes amid mounting pressure from within his own Labour Party following poor performance in recent local elections and a crucial by-election loss.
Andy Burnham, the 56-year-old centre-left Labour politician and former mayor of Greater Manchester, won the Makerfield by-election on June 18, positioning himself to trigger a leadership contest. Burnham is due to be sworn in as a Member of Parliament on June 22, the same day Starmer is expected to resign.
Over 70 Labour MPs have publicly urged Starmer to resign following the party’s election losses. Home Secretary Shabana Mahmood joined the call for his departure.
Background Context
Starmer has faced sustained pressure despite pledging to remain in his position during previous cabinet meetings. The prime minister pledged to fight any leadership challenge during a public appearance in London before the by-election result.
The Bank of England maintained its Bank Rate at 3.75% on June 18 in a 7-2 vote, with two policymakers favouring a rise to 4.00%. UK inflation held steady at 2.8% in May.
UK GDP growth is projected to remain subdued, with expansion limited to around 1.0-1.2% in 2026. The Office for Budget Responsibility downgraded the 2026 growth forecast to 1.4% in November 2025.
Outlook
Burnham vows to put Britain on a “new path” as he eyes the bid to become Labour leader and prime minister. Investors are fretting that a potential leadership change could lead to higher fiscal spending aimed at regaining voter support.
Traders will monitor three key factors:
- Starmer’s formal resignation announcement and stated exit timetable on Monday.
- The official launch of the Labour Party leadership contest and Burnham’s candidacy status.
- GBP/USD’s ability to hold the 1.3200 support level, with breaks below 1.3175 likely triggering further selling.
Market participants will also watch for any immediate policy statements from Burnham and potential shifts in Bank of England monetary policy expectations amid the political transition.
