The Missouri Legislature has sustained the veto of legislation seeking to shield volunteer health care providers from lawsuits.
The measure would have prevented civil damages against the volunteers unless there was a gross deviation from the ordinary standard of care or willful misconduct.
Supporters contend the bill would let doctors, nurses, pharmacists and others provide free health care for sponsoring organizations by protecting them against claims.
Gov. Jay Nixon vetoed the legislation and said allowing coverage through the State Legal Expense Fund would encourage volunteerism and protect those who have been harmed.
Senators voted 25-9 on Wednesday to override the veto. But the later House vote of 108-53 was one vote shy of the needed two-thirds majority.