PETER BENJAMIN MANDELSON, BARON MANDELSON , born on this date, is a British former Labour Party politician, lobbyist and diplomat. He was the Member of Parliament (MP) for Hartlepool from 1992 to 2004. He served in Tony Blair and Gordon Brown’s cabinets as Minister without portfolio, Secretary of State for Northern Ireland, Business Secretary and First Secretary of State. He was the British Ambassador to the United States in 2025 under Prime Minister Keir Starmer. 

Mandelson served as director of communications from 1985 to 1990 during the leadership of Neil Kinnock. Sidelined during John Smith’s leadership from 1992 to 1994, Mandelson became close to Blair and Brown. He was widely regarded as one of the architects of New Labour and a key adviser to Blair, contributing to the party’s election victories in 1997 and 2001.

He served as Minister without Portfolio from 1997 to 1998, Secretary of State for Business, Innovation and Skills and President of the Board of Trade in 1998 and again from 2008 to 2010, Secretary of State for Northern Ireland from 1999 to 2001, and First Secretary of State and Lord President of the Council from 2009 to 2010. He was European Commissioner for Trade from 2004 to 2008, being elevated to the House of Lords as a life peer in 2008 to serve in the Brown cabinet as business secretary. After Labour lost the 2010 general election, Mandelson co-founded the lobbying firm Global Counsel. He remained active in Labour politics, and was an adviser to Starmer before Labour’s return to office at the 2024 general election. During his short tenure as ambassador to the United States, Mandelson focused on promoting trade and fostering relationships with the US government during the second presidency of Donald Trump.

Mandelson’s career has been marked by controversy, which resulted in his twice resigning from the Cabinet and being dismissed as ambassador in 2025. He bought a home in 1996 partly with an interest-free loan of £373,000 from Geoffrey Robinson, a Cabinet colleague whose business dealings were subject to an inquiry by Mandelson’s department. He had not declared the loan in the Register of Members’ Interests and resigned in December 1998. In January 2001 he again resigned from the government following accusations of using his position to influence a passport application for S. P. Hinduja.

Controversy continue to follow Mandelson in the Epstein files, which indicated that Jeffrey Epstein made payments totaling approximately £55,000 to Mandelson or his partner between 2003 and 2004, and also covered educational fees for Mandelson’s husband, Reinaldo Avila da Silva. Emails within the files suggested that Mandelson shared sensitive UK government information with Epstein during the aftermath of the 2008 financial crisis, including early notice of a €500 billion EU bank bailout and lobbying efforts regarding a proposed 50% “super tax” on bankers’ bonuses. The revelations prompted reactions from former Prime Minister Gordon Brown, who had appointed Mandelson to ministerial positions and the House of Lords, expressing regret over the appointments and providing evidence to the Metropolitan Police for further inquiry. Amid growing public and political scrutiny, Mandelson resigned from the Labour Party and stepped down from the House of Lords in early February 2026, while a criminal investigation into potential misconduct in public office was started.

In September 2025, controversy arose in the United Kingdom regarding Mandelson’s long-standing association with the American financier and sex offender Jeffrey Epstein, ultimately resulting in Mandelson’s dismissal as British Ambassador to the United States. Their friendship, which had been publicly known about for some years, spanned at least from 2002 to 2011 and continued after Epstein’s first conviction in 2008. Renewed scrutiny and public criticism followed the release of US court documents and a cache of private emails by the US House Oversight Committee.

The released documents detailed the depth and nature of Mandelson’s relationship with Epstein, particularly after Epstein’s 2008 conviction in Florida for soliciting prostitution from a minor. Among the most damaging disclosures were a 2003 entry in Epstein’s birthday book, in which Mandelson described him as his “best pal”, and emails from 2008 in which Mandelson wrote that he “thought the world of him”, and encouraged him to “fight for early release” from his 18‑month sentence. It also emerged that Epstein had paid for Mandelson’s travel in 2003 and that Mandelson had reportedly sought Epstein’s assistance with a banking deal while serving as a UK Cabinet minister in 2010.

The revelations placed significant pressure on Prime Minister Starmer, who had appointed Mandelson as ambassador to the United States in late 2024 and had initially expressed full confidence in him. The government stated that the newly published emails provided “materially different” information about the extent of the relationship, particularly Mandelson’s suggestion that Epstein’s conviction had been wrongful. After Mandelson refused to resign, Starmer dismissed him, describing the emails as “reprehensible” and saying that Mandelson’s responses to official questions had been unsatisfactory. Mandelson expressed deep regret for the association and “profound sympathy” for Epstein’s victims, stating that he had been “taken in” by a “charismatic criminal liar”.