Lord Peter Mandelson has officially been named the UK’s next ambassador to the United States, a role he described as “a great honour.” Known for his influential career in British politics, Mandelson previously held senior positions under Tony Blair and Gordon Brown before becoming a life peer.

As the key liaison between Prime Minister Sir Keir Starmer and Donald Trump’s incoming administration, Mandelson faces a critical diplomatic mission. Despite his past criticisms of Trump, including calling him “a danger to the world,” Mandelson has recently softened his tone, advocating for a “new relationship” with the US. He emphasised the importance of engaging with Trump and key allies, including tech billionaire Elon Musk, as the Labour government seeks to strengthen transatlantic ties.

Replacing Dame Karen Pierce, Mandelson’s appointment reflects the government’s prioritisation of the UK-US relationship under Trump’s presidency. Mandelson, who has a long history in trade and international relations, is seen by some as a divisive figure due to controversies during his political career. However, Labour figures, including Health Minister Stephen Kinnock, have praised his experience and suitability for the role.

With Trump’s plans to impose tariffs that could cost the UK £22bn, Mandelson’s tenure will likely focus on mitigating trade tensions and advancing the UK’s economic interests in a challenging political landscape.