A Kansas Supreme Court that has repeatedly forced state legislators to increase spending on public schools directed tough questions Thursday to an attorney attacking a new funding law as inadequate, with one justice wondering when the protracted legal battle would be "crossing the finish line."

The court had pointed questions for both the state's attorney and a lawyer for four school districts suing the state as the justices reviewed the new law, which increases education funding by roughly $90 million a year. But in hearings over the past six years, the justices have directed their toughest questions at the state's lawyer.

The tone Thursday was different enough that the state's Republican attorney general was encouraged after watching the arguments.

Comments from two justices who have pushed lawmakers to boost spending suggested that they want to find a way to end the lawsuit and remove the high court from annual school funding debates. The four districts sued the state in 2010, and the court has promised its next ruling before July.