Recent announcements confirm that Andy Burnham intends to contest the Makerfield by-election as part of a potential Labour leadership challenge, yet procedural rules require him to remain Greater Manchester mayor until a successful parliamentary result. The by-election timeline extends into mid-June, well after the May 31 cutoff, meaning any mayoral vacancy would trigger only later. Labour’s National Executive Committee has cleared his candidacy path without immediate resignation pressure, and no other official actions or institutional deadlines indicate an earlier departure. This sequence aligns with trader consensus reflected in the 91% implied probability for the “No” outcome, as historical patterns show mayors serving full terms absent explicit early exit triggers.