Private health care providers cannot sue to force states to raise their Medicaid reimbursement rates to keep up with rising medical costs, the U.S. Supreme Court ruled today, siding with the state of Idaho in a 2009 lawsuit. In a 5-4 decision the broke across ideological lines, the justices said medical companies have no private right to enforce federal Medicaid funding laws against states if Congress has not created such a right, the AP reports. You can read a full report here from AP reporter Sam Hananel in Washington, D.C.

Idaho officials said the suit interfered with the state’s ability to fund Medicaid programs within budgetary limits; 27 states filed arguments supporting Idaho. The case involved five centers that provided care to developmentally disabled children and adults. They argued that Idaho was improperly keeping reimbursement rates at 2006 levels and ignoring rising costs.