CHICAGO (CBS) — Attorneys for the Chicago Public Schools were headed to court on Wednesday, for a hearing on their lawsuit accusing the state of discriminating against minority students when it comes to funding education.

The Chicago Board of Education has asked a Cook County judge to bar the state from distributing education funds, claiming the money is being allocated in an unfair way.

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The district has noted CPS has 20 percent of the state’s public school students, but receives only 15 percent of state education dollars.

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CPS has said schools could be forced to close by June 1 – about three weeks early – if the state doesn’t come up with more funds for the cash-strapped district.

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The state has asked the judge to dismiss the lawsuit. Gov. Bruce Rauner has said CPS is to blame for its own financial problems.