Voters in Manchester are electing a new mayor Thursday to replace Andy Burnham, who left the job to become Britain’s prime ministerVoters in Manchester choose mayor to replace Andy Burnham, who left for Downing St.A voter leaves a polling station at St Chrysostom's Church, as voting gets underway in the Greater Manchester mayoral by-election, in Manchester, England, Thursday July 30, 2026. (Annabelle Lee-Ellis/PA via AP)A voter leaves a polling station at St Chrysostom's Church, as voting gets underway in the Greater Manchester mayoral by-election, in Manchester, England, Thursday July 30, 2026. (Annabelle Lee-Ellis/PA via AP)A voter leaves a polling station at St Chrysostom's Church, as voting gets underway in the Greater Manchester mayoral by-election, in Manchester, England, Thursday July 30, 2026. (Annabelle Lee-Ellis/PA via AP)A voter leaves a polling station at St Chrysostom's Church, as voting gets underway in the Greater Manchester mayoral by-election, in Manchester, England, Thursday July 30, 2026. The Greater Manchester region has a population of about 3 million and includes the city of Manchester and surrounding towns.