Associated Press - March 2, 2010 2:04 PM ET

JACKSON, Miss. (AP) - The ACLU of Mississippi has sent a letter to the Itawamba County School District challenging its policy on same-sex prom dates.

The demand letter was sent Tuesday on behalf of Constance McMillen, a student at Itawamba Agricultural High School who wants to bring her girlfriend as a date to the April 2 prom.

ACLU Legal Director Kristy Bennett says school officials told McMillen she couldn't arrive with her date and might be asked to leave if others complain about their presence. The ACLU says the school also wouldn't let McMillen wear a tuxedo.

District Superintendent Teresa McNeece didn't immediately return a call seeking comment.

In its letter, the ACLU says the school's decisions violates the student's constitutional rights.

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