More in Common UK director Luke Tryl said: “This is one of the most high-stakes by-elections in history, and the future trajectory of the Labour Party, and indeed British politics more broadly, may depend on what happens in the next month.
“So far, it looks like Andy Burnham’s appeal extends beyond Greater Manchester.
“In a hypothetical general election, he could give Labour a lead over Reform – winning back progressive voters who have drifted away, but also making gains with some of those the party has lost to Reform.
“That said, people recognise the mayorality and premiership are different roles and a large part of Burnham’s appeal rests on championing the north and fighting Westminster – if he is successful in Makerfield, it could be challenging to sustain his reputation as an outsider from within the House of Commons, especially during this era of anti-politics.”