Answer:
A new and necessary amendment to the Constitution of the United States could be one that guarantees elementary public services to American citizens for free, being provided by the federal government: thus, the provision of a free and public health service at the federal level, which provides universal medical coverage to all citizens for a series of basic and urgent medical treatments, would allow unrestricted access to health by citizens, which would cease to depend on their economic capacity to obtain adequate medical attention to their needs.