A Labour by-election win in Wakefield will mark a “very big step” on the road to win back the Red Wall, Andy Burnham has said.
Wakefield is scheduled to go to the polls on June 23 after former Tory incumbent Imran Ahmad Khan was found guilty of sexually assaulting a teenage boy.
The constituency was part of Labour's Red Wall until the seat crumbled to the Conservatives in 2019, for the first time in 90 years.