An email seen by LabourList to party members in the North West makes specific reference to the requirement for directly elected mayors to seek permission from the NEC before seeking nomination as a candidate.
The deadline to seek permission is tomorrow (January 24) at 5pm.
The form that mayors and PPCs seeking permission to stand includes the question: What organisational and electoral risks do you anticipate there might be for the Labour Party if permission were granted and you were subsequently elected to the House of Commons, requiring you to resign from your current position?
So, suggests he has to stand down only if he wins the seat?
Gorton and Denton by-election: Labour begins search for candidate - LabourList https://share.google/socJHPvN3mDdKVjEZ