South Yorkshire's police and crime commissioner, Shaun Wright, faces being suspended from the Labour Party if he has not resigned by the morning.
He was the man responsible for childrens' services in Rotherham between 2005 and 2010, while hundreds of vulnerable children suffered sexual exploitation.
Mr Wright says he did not know about the abuse, and that he already paid for any failings by standing down from that post.
ITV News Correspondent Damon Green reports:
Children as young as 11 were raped by large groups of men, a new inquiry into child sexual exploitation in Rotherham has found.
A report into 16 years of child sexual abuse in Rotherham has concluded that the true scale of exploitation in the town will never be known.