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Chicago Teachers Union Attorney Robert Bloch, left, talks with CTU President President Karen Lewis following oral arguments before the Illinois Educational Labor Relations Board in the dispute over a longer school day today. (Antonio Perez/ Chicago Tribune)

Chicago Teachers Union Attorney Robert Bloch, left, talks with CTU President President Karen Lewis following oral arguments before the Illinois Educational Labor Relations Board in the dispute over a longer school day today.
(Antonio Perez/ Chicago Tribune)
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