Voters in Manchester choose a mayor to replace Andy Burnham, who left city hall for Downing Street

LONDON (AP) — Voters in the English city of Manchester are electing a new mayor Thursday to replace Andy Burnham, who quit the job to become Britain’s prime minister.

It’s also chance for some 2 million voters to pass judgment on the governing Labour Party, whose sagging popularity Burnham hopes to revive. Polling stations are open from 7 a.m. to 10 p.m., with vote-counting starting Friday morning.

Burnham was mayor of Greater Manchester for nine years until he won a special election for a seat in Parliament last month with the intention of challenging then- Prime Minister Keir Starmer for the Labour leadership.

Burnham’s momentum spurred Starmer to announce he would resign after just two years in office. Burnham was the only candidate in Labour’s leadership election, and he became prime minister on July 20.

He has established a branch of the prime minister’s office in the city, dubbed “No. 10 North,” to help fulfil his pledge to give local leaders more powers and spread economic growth around the country.

The Greater Manchester region has a population of about 3 million and includes the city of Manchester and surrounding towns. Burnham won three straight mayoral elections, in 2017, 2021 and 2024, and Labour candidate Bev Craig, the current leader of Manchester City Council, is hoping to retain the mayoralty for the party.

Burnham said serving as mayor had been an “immense privilege,” and he urged voters to back Craig to “build on the progress we’ve all made together.”

Craig faces six other candidates, including Sian Astley from the anti-immigration party Reform UK, which won big in many areas of Greater Manchester in local elections in May.

Labour has also lost voters to the Green Party, which won a special parliamentary election in the Gorton and Denton district of Greater Manchester in February, pushing Labour into third place and heightening concerns in the governing party about Starmer’s leadership. Those worries came to a head after the May election rout, leading to Starmer’s fall and Burnham’s rise.

Rob Ford, professor of politics at the University of Manchester, said “Labour want a show of strength in a city region where the party has long been politically dominant.”

“A big win in his former stomping ground will provide a significant boost for Andy Burnham,” Ford wrote in a blog post for the U.K. in a Changing Europe think tank.