MADISON, Wis. (AP) – Unions representing prison guards and state teachers have failed to muster enough member votes to remain certified. Gov. Scott Walker’s collective bargaining restrictions require public employee unions to hold annual votes to see if members want the organizations to continue to represent them. A Madison judge has invalidated the requirements as they apply to local public unions but state employee unions still held elections. Those contests began on Nov. 1 and ended at noon on Thursday. The Wisconsin Employment Relations Commission released data Thursday afternoon showing a union representing about 7,000 correctional officers and a union representing about 665 teachers who work in state institutions such as prisons both fell short of the 51 percent majority needed to remain certified. The unions have eight days to challenge the results.