SALEM — A tax on insurance companies and some hospitals to provide health care for low-income Oregonians goes before voters next month, even after it was approved by the Legislature and signed by the governor during the 2017 legislative session.

Three Republican lawmakers, arguing that the costs would be shifted to consumers, gathered enough signatures for a referendum to allow voters to say yes or no to the assessments — as the Democrats tend to call them — or taxes, the Republicans' favored wording.