Loss of confidence in the leadership: Health Secretary Streeting resigns, Prime Minister Starmer’s likelihood of stepping down rises sharply

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UK Health Secretary Streating announced his resignation citing "loss of confidence in the leadership," further shaking Prime Minister Starmer's governing foundation and triggering strong market expectations of a Labour leadership change.

On Thursday, Streating stated bluntly in his resignation letter to Starmer: "You will not be able to lead Labour into the next general election," criticizing the current prime minister's performance as "where vision is needed, there is only a vacuum; where direction is needed, there is only drift." According to sources, Streating will not trigger a formal leadership contest procedure today; Starmer's allies believe this indicates he has not yet secured the required support of at least 81 Labour MPs to initiate a leadership contest.

After the announcement, the financial markets reacted moderately—there was hardly any noticeable movement in the pound or UK government bonds. Polymarket platform data shows that the probability of Starmer leaving Downing Street before the end of June rose from 37% to 47%; the UK's 30-year government bond yield, which is more sensitive to fiscal and political risk, briefly narrowed its daily decline after the news was released, quoted at 5.69%, still about 5 basis points lower for the day. Some market observers believe a potential new leadership would pursue more orthodox fiscal policies, partially explaining the market's calm.

Streating’s resignation is the latest development in the ongoing political crisis that has brewed since Labour’s disastrous local and regional elections last week. Former Deputy Prime Minister Angela Rayner, Greater Manchester Mayor Andy Burnham, and Defence Secretary Al Carns are all seen as potential leadership contenders, and Labour’s power structure is brewing a major change.

Content of the resignation letter: Strong wording, but avoids formal declaration of challenge

In his resignation letter, Streating systematically criticized Starmer's governance. He described last week's local election results as "unprecedented," saying the government's "unpopularity" was the "main common factor" for defeats across the UK, and specifically named the rise of Reform UK and government "policy failures" as key reasons for his resignation. He also criticized Starmer for his "restart" speech on Monday and expressed dissatisfaction with the administration's "firm hand" in dealing with internal dissent, stating that it "damages our politics."

Although the public widely expected Streating to announce his candidacy alongside his resignation, the letter only called for a "broad" leadership contest, hoping to assemble the "best line-up of candidates," and expressed hope that Starmer would "support this approach." Starmer's allies interpret this wording as: Streating is actually admitting his support is insufficient, and may even be paving the way for Andy Burnham to return to Parliament and compete, rather than launching a direct challenge himself. According to Labour party rules, a formal leadership challenge requires the nomination of at least 20% of Labour's 403 sitting MPs, i.e., 81 signatures.

If Streating governs, what direction would policies take?

Streating’s allies do not hide his ambitions to become prime minister and claim he already has a complete policy package to transform the UK. His policy positions differ significantly from Starmer's current course in several key areas, which investors should take note of.

On the economic front, Streating has publicly said he is "uncomfortable" with the current UK tax burden and opposes further tax increases, but also warns that the national debt must be seriously addressed, effectively ruling out large-scale tax cuts. He previously advocated aligning capital gains tax with income tax, replacing inheritance tax with a "lifetime gifts tax," and insisted all tax and spending plans must undergo a "progressive impact test." He consistently supports Labour's adherence to fiscal discipline, maintaining a basic balance between daily spending and tax revenues.

On defence issues, Streating has suggested looking for funds from the welfare budget to supplement defence spending and broadly supports increasing defence expenditure to 3% of GDP.

On Brexit, he is one of the most representative pro-Remain figures in the cabinet, pushing for deeper trade relations with the EU, but clearly opposing the restoration of free movement of people.

On NHS reform, the hallmark of Streating’s tenure was dissolving NHS England—the largest quasi-governmental agency in the world—bringing it directly under government control, and pushing for continuous reductions in waiting lists. He clearly stated that NHS financing was not on the reform agenda and publicly criticized Reform UK leader Nigel Farage's idea of emulating the French public insurance model.

Line-up of challengers: Many emerging

On the day of Streating’s resignation, power structures within Labour were rapidly evolving. Former Deputy Prime Minister Angela Rayner announced Thursday that she has been cleared of any intentional wrongdoing regarding £40,000 in undeclared tax, removing the main barrier to a leadership bid. It is reported that Rayner is communicating with several prominent figures from the soft left faction, including Andy Burnham and Energy Secretary Ed Miliband, discussing national policy direction and possibly endorsing one of them should a formal contest be triggered.

Andy Burnham is currently ineligible to compete due to not being an MP and would have to win a by-election to do so, with a very limited time window. According to Labour MPs and party insiders, Defence Secretary Al Carns is also expected to announce his candidacy once a contest is formally triggered, further enlarging the pool of potential candidates.

It is reported that several of Starmer’s rivals are generally not eager to trigger a formal leadership challenge, preferring to pressure the prime minister to voluntarily announce a departure timeline. Starmer himself has said he will resist any leadership challenge, meaning that even if the contest process starts, he would remain in office throughout, and the procedures may take several months.

Market impact: Political premium not fully priced in

The immediate response of UK financial markets to this political upheaval has been relatively muted. The UK's 30-year government bond yield briefly narrowed its daily decline after Streating announced his resignation, but the overall trend was not materially affected, quoting around 5 basis points lower than the previous day at 5.69%, with the pound also showing no obvious movements.

Market commentators attribute this restrained reaction partly to expectations of policy continuity—most investors believe a potential new leadership is unlikely to greatly deviate from the current fiscal framework. Polymarket platform data indicates that political risk pricing is mildly adjusting: the probability of Starmer stepping down before the end of June has risen from 37% to 44%, but remains below 50%, showing that the market still has no definite verdict on his departure.

Risk Warning and DisclaimerThe market has risks, investment needs caution. This article does not constitute personal investment advice, nor does it take into account individual users' special investment objectives, financial situation, or needs. Users should consider whether any opinions, views, or conclusions in this article suit their particular circumstances. Invest accordingly, at your own risk. ```