Andy Burnham has been 'crowned' as Britain's prime minister after a meticulous campaign that saw him move from mayor of Greater Manchester to 10 Downing Street via a byelection in Makerfield. The Labour leader was the only party MP to secure enough nominations following Keir Starmer's resignation on Friday, in what Australians might call a leadership coup.
The transition reflects Labour's desperation. Just two years ago, a Starmer-led Labour won a decisive election victory, but the glow quickly faded. For nearly 18 months, the party has been in electoral freefall, with voting support plummeting from above 30% to 17% in the spring. Nigel Farage's Reform UK has grown into the ascendant force, establishing a consistent poll lead since May 2025.
“Andy Burnham becomes PM after Starmer's resignation, as Labour's support plummets and Reform UK leads polls.”
Burnham faces the same defining test as his predecessor: can centre-left politics halt the march of populist nationalism? Described as a more natural politician unafraid to flaunt his northern authenticity, Burnham is Labour's great hope for revival. But the new PM must contend with a resurgent Reform UK and voter discontent over cost of living and housing.
As Burnham settles into Downing Street, Starmer remains a backbench MP for Holborn and St Pancras, a seat he has held since 2015. He could choose to stay on as an active backbencher or retire from Parliament entirely – a decision that would trigger an immediate by-election. That prospect alarms Labour strategists, as the Greens under Zack Polanski have gained ground across central London, targeting traditional Labour strongholds. Polanski has called it 'tempting' to challenge Starmer's seat, warning that a by-election would force Labour to defend a high-profile seat against a big-name candidate.
Losing or suffering a heavy vote drop to Polanski's Greens would deal a severe psychological blow to Labour's momentum – a risk the party can ill afford as it scrambles to reverse its freefall under a new leader.