Exclusive: Greater Manchester mayor said to have identified seats where MPs would step aside to allow leadership bid

Andy Burnham has a credible plan to return to Westminster “within weeks”, his allies have said, with the Greater Manchester mayor expected to use a byelection fight to set out a new agenda for government.

Burnham, who was blocked by Labour’s ruling body from running in February’s Gorton and Denton byelection, has identified several seats where MPs are prepared to step aside for his leadership bid.

In a sign that his campaign is more progressed than previously thought, Burnham’s team is understood to have lined up an “impressive” candidate to replace him as Greater Manchester mayor.

Allies said he planned to outline a “radical rewiring” of the state in the coming weeks – including sweeping changes to the electoral system and a 10-year growth plan – after a potentially devastating set of elections on 7 May that could end Keir Starmer’s premiership.