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12 June 2026
Issue: 8165 / Categories: Legal News , Profession , Constitutional law , International , National security
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NLJ this week: Mandelson affair exposes constitutional fault lines

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The fallout from Lord Mandelson’s appointment and dismissal as UK ambassador to Washington raises profound questions about constitutional governance, accountability and political appointments

Writing in NLJ this week, Professor Graham Zellick KC argues that the affair was marked by 'abuse of authority and procedural irregularity'. Examining the appointment through the Constitutional Reform and Governance Act 2010, he contends that powers vested in the foreign secretary appeared to be exercised instead by No 10.

The article also scrutinises the handling of security vetting, highlighting concerns that key decisions were taken without proper documentation or oversight.

While political appointments to ambassadorial posts are legally permissible, Zellick questions whether they should continue at all, noting their rarity and potential to undermine the non-political nature of the diplomatic service. Ultimately, he argues that failures of judgement, rather than legal complexity, lay at the heart of the 'Mandelson imbroglio'.

MOVERS & SHAKERS

Burgess Mee—Victoria Sterritt

Burgess Mee—Victoria Sterritt

Family law boutique expands London team with legal director hire

Ward Hadaway—Mike Gore

Ward Hadaway—Mike Gore

Firm enhances advisory capability with strategic risk specialist hire

Stewarts—Alexandra Lyons

Stewarts—Alexandra Lyons

Insurance and reinsurance specialist joins policyholder disputes practice as partner

NEWS
Some employment law controversies never disappear—they merely lie dormant
Artificial intelligence (AI) is transforming legal practice, but its successful adoption depends as much on culture as technology
The fallout from Lord Mandelson’s appointment and dismissal as UK ambassador to Washington raises profound questions about constitutional governance, accountability and political appointments
Pastries may be in the firing line while kebabs escape scrutiny, but the reality is far more nuanced
The Supreme Court’s decision in Dillon highlights a central tension in modern public law: rights may be recognised without being fully realised
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