Labour mayoral hopeful Sion Simon has insisted that sitting MPs Liam Byrne and Gisela Stuart should be allowed to put themselves forward as rival potential candidates - but perhaps they should be asked to pay the costs of any by-election in their constituencies.
The full text of Mr Simon's comments, in an article written by him and published in today's Birmingham Post, is below.
Mr Simon is the former MP for Birmingham Erdington who stood down before the last election to concentrate on his campaign to become Birmingham's first directly-elected mayor. His first hurdle - if the city does vote yes to creating a mayor, in the referendum on May 3 - is to win the Labour nomination against rivals Liam Byrne and Gisela Stuart, who are the sitting MPs for Birmingham Hodge Hill and Birmingham Edgbaston respectively.
The battle appeared to be won when it emerged some senior Labour figures, reportedly including Harriet Harman, the Deputy Leader, were calling for sitting MPs to be banned from standing as mayors or police commissioners.