A lawsuit challenging the constitutionality of legislation that cut Oklahoma's top income tax rate is being taken up by the state's highest court.
The Oklahoma Supreme Court is scheduled to hear oral arguments Tuesday in a lawsuit that asks the court to invalidate the legislation and prevent it from going into effect.
The lawsuit was filed by Oklahoma City attorney Jerry Fent, who has successfully challenged other legislation in the past.
The tax cut bill was adopted by the Legislature this year and signed into law by Gov. Mary Fallin. It reduces the personal income tax rate from 5.25 percent to 5 percent in 2016 if revenue projections are met.
Among other things, the lawsuit alleges the tax cut was approved by fewer lawmakers than required by the constitution.