Starmer Resigns, the Reckoning Waits

Starmer’s resignation

• Shortly after 09:30 on Monday 22 June, Sir Keir Starmer announced outside Downing Street that he would resign as Labour leader and Prime Minister, remaining as caretaker until a successor is chosen. Whoever follows will therefore be Britain’s seventh prime minister in a decade.
• The timing was forced by Defence Secretary John Healey, who resigned on 11 June stating that the planned defence settlement fell short of what current conditions require, with the government “unable” and the Treasury “unwilling” to fund it adequately. This dispute illustrates the central tension between spending commitments and binding fiscal constraints: a tension that now shifts onto Starmer’s successor.
• The departure came after a long erosion of support rather than this single event. May’s local elections delivered heavy losses (around 1,500 council seats, the loss of Wales and a record-low Holyrood result); Reform UK surged at Labour’s expense; polling was weak; and the government was still carrying the fallout from the Mandelson affair. Starmer’s appointment of Peter Mandelson as ambassador to the US, later unwound over Mandelson’s ties to Jeffrey Epstein, further damaging confidence in the PM’s judgement.

Brief timeline of events

• 11 June: Healey resigns over defence funding; armed forces minister Al Carns follows.
• 18–19 June: Burnham wins the Makerfield by-election with 55%, beating Reform UK by more than 9,000 votes.
• 22 June: Starmer announces his resignation and Wes Streeting backs Burnham, turning a likely contest into a probable coronation.
• 23–24 June: Transition talks begin, with Darren Jones ruling himself out, leaving Burnham unopposed.
• Ahead: Nominations open 9 July, close 16 July. If unchallenged, Burnham becomes PM around 17 July; if contested, a new leader is in place by 1 September.

Andy Burnham as the next PM

• A Blair- and Brown-era cabinet minister, Burnham left Westminster in 2017 to become Greater Manchester’s first metro mayor, earning the “King of the North” label and a reputation for delivery. He won Makerfield on 19 June, with Streeting and Jones endorsing him, which makes a contest unlikely and allows for a quick transition.
• Burnham’s plans lean towards higher spending through devolution, public control of utilities, while committing to Reeves’s fiscal rules and the manifesto tax lock (no income tax, VAT or NI rises), leaving a narrow path between spending ambition and binding constraints.
• Markets appear reassured for now, given the expected smooth transition; Burnham’s fiscal-rule pledge, and Jones’s account that he would “borrow a little more” only for specific projects via development corporations.

Immediate implications

• Gilt yields have fallen sharply. The 10-year UK yield dropped to roughly 4.67% today, a third consecutive session of declines and a two-month low, from a peak last month at 5.14%. Two distinct forces account for this. First, weak June activity data has reduced the likelihood of further Bank of England rate rises, lowering the rate path that gilt yields track. Second, the prospect of an orderly succession has reduced the political risk that had been priced into UK debt. The risk premium that accumulated when a Burnham challenge first looked likely is therefore being removed as the transition turns orderly.
• Against the euro, the pound has risen to a seven-week high above €1.16, supported by UK political-stability expectations. Against the dollar ($1.31, down from $1.34 last week) and the yen, the sterling weakened, however those moves reflect dollar and yen strength, with the Fed signalling rates will stay high and the Bank of Japan moving toward further hikes, rather than any UK development. Currency markets may therefore not yet be pricing UK political activity.
• Similarly, UK equities have given no clear political signal. The FTSE 100 closed Wednesday up 0.31% at around 10,461, but the gains were stock-specific, with Segro rising 17% after rejecting a US takeover bid, rather than a direct response to the UK leadership change.
• The UK Government is in a holding pattern until the succession completes, so no major spending or policy decisions are expected before the new PM is installed. The scheduled 22 July UK–EU summit has been postponed, and the Defence Investment Plan remains due before the 7 July NATO summit, leaving an unfunded spending commitment outstanding through the transition.

Cordoba View

• The spring risk premium in UK gilts is gradually diminishing, with the 10-year yield at 4.67%. We would caution, however, that this partly reflects a weakening economy rather than renewed confidence in the new government, as a yield fall driven by deteriorating growth is a weaker signal than one driven by fiscal credibility.
• The decisive variable may prove to be the chancellor rather than the prime minister, with Reeves’s expected removal withdrawing the figure markets have credited with anchoring fiscal discipline. A fiscally conservative successor may sustain the relief, whereas a more expansionary choice would risk reviving the premium.
• We anticipate subdued volatility through the July handover, with gilt yields potentially falling below current levels, followed by renewed pressure at the long end of the curve as the autumn budget approaches.