Corbyn ally says attempt by Labour MPs to oust leader does not comply with party rules or democratic structuresA key ally of Jeremy Corbyn has insisted that the future of his leadership should be decided by a ballot of ordinary members instead of a vote of no confidence by MPs.Diane Abbott, the new shadow health secretary, said the way in which Labour rebels were attempting to oust Labour’s leader of nine months was not part of the rules and was seeking to avoid the party’s democratic structures.