A case of first impression comes before a state court in Illinois. While the issue has not been heard in Illinois courts, appellate courts in the states of Wisconsin, Iowa, and Indiana have definitively ruled on the issue, although the outcomes of the various cases were slightly different in each case. Further, the case heard by the Indiana court was definitively ruled upon by the U.S. Supreme Court. Explain whether the court in Illinois is bound by the decision of any of the other courts, and why.