Dame Tessa Jowell has fuelled speculation she is preparing for a bid to run as London's mayor as she announced she will retire as an MP at the next general election.
Labour leader Ed Miliband praised the former Labour Cabinet minister Dame Tessa Jowell, saying she was a "unique politician" of warmth, spirit, loyalty and generosity.
Dame Tessa Jowell's colleagues and fellow MPs took to Twitter to praise the former Cabinet minister, who is to retire at the general election.
Dame Tessa Jowell is to retire as an MP at the general election after nearly a quarter of a century in the Commons, the former Cabinet minister has told her local constituency party.
The Labour stalwart, who served in Tony Blair and Gordon Brown's Cabinets and as culture secretary played a central role in bringing the 2012 Olympics to London, is not seeking re-election in 2015.
The Dulwich and West Norwood MP stepped down from the Shadow Cabinet last year after seeing the hugely-successful Games through to their closing ceremony as shadow Olympics minister.
The former Olympics minister Tessa Jowell has tweeted her tribute to former England captain David Beckham, who was a key figure in the successful bid for the 2012 Olympic games:
Labour MP Tessa Jowell told Daybreak that Margaret Thatcher's memory should be treated with respect, on the day of her funeral, "whatever disagreements".
She said: "I think this is the right way to honour somebody who was the Prime Minister of our country for 11 and half years."
The former culture secretary Tessa Jowell, who is MP for the neighbouring constituency of Dulwich, has condemned the anti-Thatcher celebrations in Brixton and elsewhere in the UK as "disrepectful":
Former Culture Secretary Tessa Jowell has stressed the crisis at the BBC should not be used as an excuse to "undermine" the case for a public broadcaster.
Writing in The Daily Telegraph, Ms Jowell said the public should be left to run the corporation, though short-term issues such as "the culture of moralistic smugness" must be "urgently addressed".
"This crisis must not be allowed to herald the slow death of the uniqueness of the BBC", Ms Jowell wrote.
"Lord Reith said that the role of the BBC was to 'inform, educate and entertain'. Only radical public ownership will continue to ensure that these values are firmly embedded at the heart of the corporation and restore the trust it needs to overcome this crisis in the longer term", she concluded.