A senior Cabinet Office official has defended the vetting process for Peter Mandelson's appointment as US ambassador, telling MPs that proper procedures were followed. Cat Little, the permanent secretary at the Cabinet Office, gave evidence to a parliamentary committee on Wednesday, addressing concerns about how Mandelson's background was assessed before his diplomatic posting.
Little's Testimony to MPs
Little stated that the vetting process was conducted in line with standard protocols, and that all relevant checks were completed. She emphasized that due diligence was carried out thoroughly, and no corners were cut. The official's comments come after days of intense speculation over Prime Minister Keir Starmer's position, fueled by the controversy surrounding Mandelson's appointment.
Background of the Controversy
Peter Mandelson, a former Labour minister and European Commissioner, was nominated as the UK's ambassador to the United States earlier this year. However, his appointment sparked debate due to his past political roles and business connections. Critics questioned whether his vetting had been rigorous enough, especially given the sensitivity of the US-UK relationship.
The prime minister, Keir Starmer, has faced pressure from opposition parties and some within his own party to clarify the circumstances of Mandelson's selection. Starmer has insisted that Mandelson is a highly qualified candidate, but the controversy has raised broader questions about transparency in high-level appointments.
Political Fallout
Labour MPs have largely rallied behind Starmer, but the issue has provided ammunition for political opponents. The Conservatives have called for a full inquiry into the vetting process, while Liberal Democrats have demanded the release of relevant documents. Little's testimony is expected to ease some concerns, though opposition figures remain skeptical.
In her evidence, Little reiterated that the Cabinet Office follows strict guidelines for all diplomatic appointments, and that Mandelson's case was no exception. She declined to discuss specific details of the vetting, citing confidentiality, but assured MPs that the process was robust.
Next Steps
The parliamentary committee is expected to publish a report on the vetting process in the coming weeks. Meanwhile, Mandelson is preparing to take up his post in Washington, with his appointment likely to be confirmed by the US administration. Starmer's office has declined further comment, stating that the matter is now closed.



