Councillor for West Ecclesfield and UKIP party member, John Booker, has called on his party’s leader Henry Bolton to step down, telling Sheffield Live! that Bolton’s position “is untenable”. On Monday, a dozen senior UKIP members quit their roles, including Bolton’s deputy and assistant deputy over offensive texts sent by his ex-girlfriend. Bolton has insisted he will not quit as leader. Baillor Jalloh reports for Sheffield Live!