There is no rule preventing Sir Sadiq from sitting in the House of Lords and remaining in the job he has held for a decade.
Ben Houchen, who has been the Tory mayor of Tees Valley since 2017, has sat in the second chamber for three years.
Conservative London Assembly member Shaun Bailey, who ran as mayor in 2021, is also a peer.
In a fiery City Hall exchange with Lord Bailey in 2022, Sir Sadiq described it as “proof, if it was ever needed, that we should abolish the House of Lords”.
Mayor of London Sir Sadiq Khan with his wife Saadiya Ahmad in the royal box at Wimbledon
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Will Sadiq Khan run as London Mayor again?
Sir Sadiq’s team has indicted that he will stay on as mayor until at least his third term ends in 2028.
Sir Sadiq has described his current job as “the best job, not just in politics but in the world”.
However, it has come with some personal costs.
Threats to his safety mean that since 2017 he has received round-the-clock police protection, described as on a par with that given to the King and the Prime Minister.
This is unprecedented for a municipal official for London’s first Muslim mayor.
Rumours are also already swirling about potential successors.
Dawn Butler, the Labour MP for Brent East and a friend and ally of Sir Sadiq’s, has previously denied reports she was preparing a mayoral campaign.
Polls suggest he would be favourite to win a fourth term if he does stand again.
Could he swap City Hall for Andy Burnham’s cabinet?
Sir Sadiq Khan is understood to have told Mr Burnham he does not want a ministerial post
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As a Lord, Sir Sadiq could be offered a place in Andy Burnham’s cabinet.
The prime minister-in-waiting has vowed to deliver “the biggest rebalancing of power the country has ever seen” and shift more authority from Westminster to regional mayors.
It is understood that Sir Sadiq has told Mr Burnham that he has no wish to be a minister.
But his elevation to the House of Lords does give him a permanent parliamentary platform when he eventually leaves City Hall, allowing him to remain active in politics without returning to the Commons.
