Sir Keir Starmer’s grip on the Labour leadership is facing renewed turbulence as allies of Manchester Mayor Andy Burnham claim they are on the verge of engineering a political comeback that could shake the party to its core. According to senior figures involved in the effort, plans are rapidly advancing to secure Burnham a return to the House of Commons via a by-election laying the groundwork for a direct leadership challenge to the Prime Minister.
Labour insiders say the manoeuvre represents the most serious internal threat to Starmer since he entered Downing Street. Burnham, long viewed as one of the Prime Minister’s most formidable internal rivals, has never hidden his ambition to lead the party. Now, with Labour’s poll ratings sagging and discontent spreading through the parliamentary ranks, his supporters believe the moment has arrived.
A Seat “Likely to Come Free”
Sources close to Burnham insist that strategists working quietly behind the scenes have identified at least one parliamentary seat in the North West that could become vacant in the coming months. Polling conducted for Burnham’s camp suggests he would comfortably win a by-election there, even amid the growing challenge posed by Nigel Farage’s Reform UK.
One Labour MP backing Burnham was blunt about the situation. “This is no longer theoretical,” they said. “We are extremely close to securing a seat that is likely to come free soon. The numbers suggest Andy would win it, and that changes everything.”
Among the seats reportedly discussed is a Greater Manchester constituency currently associated with former Labour MP Andrew Gwynne. While Gwynne has publicly denied any intention to stand aside, his political future remains uncertain. Suspended from the party earlier this year following revelations that he sent racist and sexist WhatsApp messages, Gwynne has yet to return to frontline Westminster politics and is still under investigation.
Though no formal agreement has been announced, Burnham’s allies believe circumstances may soon align in their favour.
Mounting Pressure on Starmer
The developments come at a deeply uncomfortable moment for Sir Keir Starmer. Labour’s polling position has weakened, and expectations are low ahead of May’s local council and devolved elections. Party figures privately warn that heavy losses could trigger an open leadership contest within weeks.
While Starmer technically retains the power to block Burnham’s candidacy through Labour’s National Executive Committee (NEC), doing so would be politically explosive. Senior figures acknowledge that preventing a popular mayor from standing in a by-election especially during a period of crisis would be seen by many members as an admission of weakness.
One veteran Labour insider explained: “If the party is reeling after disastrous election results, how do you justify stopping someone like Andy Burnham from standing? It would look panicked, defensive, and out of touch with the membership.”
A Crowded Field of Rivals
Burnham is not the only senior figure eyeing the leadership. Health Secretary Wes Streeting and former Deputy Prime Minister Angela Rayner are both widely rumoured to be positioning themselves for potential bids.
Streeting, in particular, has attracted attention after a recent interview in which he criticised the government’s “technocratic” style, likening it to a maintenance operation rather than a transformative project. His remarks were interpreted by many colleagues as a thinly veiled attack on Starmer’s leadership.
Angela Rayner, meanwhile, is understood to be in regular contact with Burnham’s camp. Several MPs believe the pair could form a joint leadership ticket if Burnham returns to Parliament, combining his regional popularity with her grassroots appeal.
Rayner has also been quietly backing a rebellion against proposals to reduce jury trials, warning colleagues that Reform UK could exploit the issue to devastating effect.
Lucy Powell’s Intervention
Adding another layer of intrigue is Lucy Powell, recently elected as Labour’s deputy leader and a long-time Burnham ally. Powell used a series of media appearances to urge the party to unite behind Starmer ahead of the May elections, warning that internal feuding only strengthens political opponents.
Publicly, her message was framed as a call for discipline in the face of Reform UK’s rise. Privately, however, party figures suggest it was aimed squarely at Wes Streeting.
As one insider put it: “When Lucy talked about unity, she wasn’t talking to Andy. She was talking to Wes.”
Powell acknowledged that the government faces “a big repair job,” echoing Streeting’s language, but insisted Labour MPs must put aside personal ambitions. Her comments were widely seen as an attempt to slow Streeting’s momentum while Burnham finalises his Commons strategy.
The Reform UK Factor
Complicating all calculations is the surge in support for Reform UK, particularly in northern England. Burnham’s critics warn that any by-election he contests would quickly become a high-profile showdown with Nigel Farage.
Farage himself has already weighed in, claiming that Burnham risks humiliation if he turns a by-election into a proxy leadership contest. Reform, he said, would relish the opportunity to turn it into an “epic battle.”
Labour also fears that if Burnham were to resign as mayor to pursue a Commons seat, Reform could seize control of Greater Manchester’s mayoralty a prospect that alarms party strategists.
The NEC Dilemma
Under Labour’s rules, the NEC would oversee the selection process for any by-election candidate, appointing a panel to vet contenders before presenting a shortlist to local members. The NEC remains majority-controlled by Starmer loyalists, but blocking Burnham outright could provoke a backlash from activists and unions.
One senior party figure questioned the wisdom of letting Burnham through. “Why would we allow someone who has openly talked about challenging the leader to become our candidate?” they asked. “How does that help Labour?”
Others argue the opposite: that denying members the chance to back a high-profile figure would deepen resentment and fuel rebellion.
A Party on Edge
As manoeuvring intensifies, tensions inside Labour are reaching breaking point. Supporters of Burnham insist Downing Street is fully aware of what is unfolding, and that recent briefings suggesting Starmer will “fight any challenge” are evidence of growing anxiety.