The Makerfield by-election on 18 June 2026 features Labour candidate Andy Burnham, the Greater Manchester mayor with deep local roots and prior service as the area's MP, against Reform UK's Robert Kenyon, a resident plumber positioned as an insurgent challenger. The contest arose after incumbent Josh Simons resigned to create an opening, with Labour's national executive confirming Burnham as the nominee and bypassing standard local selection. Recent Survation polling indicates Burnham holds a narrow lead in head-to-head voting despite Reform's stronger generic ballot performance, reflecting his personal recognition and Labour's organizational edge in this former safe seat. Kenyon benefits from voter frustration with national politics and Reform's broader momentum, though the seat's historical Labour lean and the short campaign timeline sustain Burnham's market lead while leaving room for late swings before polls close.