Lord Peter Mandelson is expected to be named as the UK's next ambassador to the US.
The Labour grandee, who served in multiple ministerial roles under Tony Blair and Gordon Brown before taking up a life peerage in the Lords, was considered to be one of the frontrunners for the position.
He will replace Dame Karen Pierce, whose term in Washington DC is due to end in early 2025.
An architect of New Labour, Lord Mandelson was seen as a key adviser to Prime Minister Sir Keir Starmer in the run up to the 2024 election.
He served as a Labour MP for Hartlepool from 1992 to 2004, during which time he served as secretary of state for Northern Ireland and business secretary.
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