On the Republican campaign trail, he derides any such public aid. But the healthcare law he signed as Massachusetts governor allows it. Reporting from Washington— The Massachusetts healthcare law that then-Gov. Mitt Romney signed in 2006 includes a program known as the Health Safety Net, which allows undocumented immigrants to get needed medical care along with others who lack insurance. Uninsured, poor immigrants can walk into a health clinic or hospital in the state and get publicly subsidized care at virtually no cost to them, regardless of their immigration status.