Former Scottish Labour MP bids to make comeback eight years after losing seat to SNP's Mhairi Black
Douglas Alexander was in both Mr Blair's Cabinet and that of his successor Gordon Brown.
But as the SNP virtually swept the board in the 2015 general election, winning all but three of the Scottish seats at Westminster, Mr Alexander lost his his Paisley and Renfrewshire South seat to Mhairi Black – then a 20-year-old student.
He is now seeking to make a return to elected politics, standing as Labour's candidate for East Lothian in the next general election.
The seat is held by former Scottish justice justice secretary Kenny MacAskill, who left the SNP to join Alex Salmond's Alba Party.
The East Lothian constituency will be one of Scottish Labour's top targets when the next Westminster election is fought, with Mr Alexander saying he was "humbled and grateful" to be chosen for the contest.
Announcing his selection on Twitter on Sunday, Mr Alexander wrote: "He's running! Humbled and grateful to be overwhelmingly selected today by local party members as Scottish Labour's candidate for East Lothian.
"Change is coming to our country and I'm determined to play my part by winning East Lothian back for Scottish Labour."
His candidacy comes more than 25 years after he was first elected to the Commons, winning the then-safe Labour seat of Paisley South seat in a by-election in November 1997.
After his role in helping co-ordinate Labour's successful election campaign in 2001 he was made a junior minister in Mr Blair's government, serving in various roles before being made both transport secretary and Scottish secretary in 2006.
When Mr Brown became prime minister in 2007, he appointed Mr Alexander his international development secretary.
Mr Alexander has been a senior fellow at Harvard University since his tenure ended as an MP.
The current MP, Mr MacAskill, won the seat for the SNP again in 2019, ousting Labour's Martin Whitfield, but Mr MacAskill has since defected to Alba.
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