Speculation has spread over whether Greater Manchester Mayor Andy Burnham will attempt to return to parliament after the resignation of MP Andrew Gwynne triggered a byelection in the Gorton and Denton constituency. Allies of Prime Minister Keir Starmer have launched a 'Stop Andy Burnham' campaign to prevent the Labour mayor from making the move, according to multiple party sources.
Members of Labour's national executive committee (NEC) said it would be impossible for Burnham to pass the selection process due to the number of Starmer loyalists on the body. Concerns were also raised over the financial cost— approximately £500,000—and political risk of a subsequent mayoral byelection, which could allow Reform UK to gain a foothold in Greater Manchester.
Burnham has long been believed to be seeking a return to Westminster for a potential Labour leadership bid. However, his allies caution against overstating his ambition, stating he is passionate about his current role and would only return if he felt he had something to contribute. Burnham himself said people should not rush to conclusions.
To return, Burnham must be selected by the NEC, where odds are stacked against him, and win the byelection against Reform UK and pro-Gaza independents. Senior Labour figures said the party machinery, tightly controlled by Starmer's chief of staff Morgan McSweeney, is already working to block him.
Starmer warned his party to focus on the cost of living and global stability, not leadership speculation. The byelection is expected before May local elections, leaving Burnham a tight window for any potential leadership challenge.



