CHICAGO -- Chicago Public School teachers began voting on Wednesday on whether to authorize a strike.
The voting will run through Friday, and the results are expected that night.
Of the 27,000 Chicago Teachers Union members, 75 percent need to vote "yes" to approve a walkout.
The teachers' contract expired in June, and they're unhappy with the current pace of negotiations. Their talks come amid a $500 million gap in the CPS budget, and there doesn't appear to be any help on the horizon from the state.
Mayor Emanuel is calling the vote a distraction, while the union says it's timely and appropriate.
The last teachers strike happened three years ago. More than 90 percent voted "yes" at that time.
CPS CEO Forrest Claypool is also considering cutting 450 administrative jobs at the central office to save $50 million.