In 1994, when the health care reform plan then being advanced by President Clinton called for mandating that all Americans buy health insurance, the non-partisan Congressional Budget Office studied the issue and concluded:
“The government has never required people to buy any good or service as a condition of lawful residence in the United States. An individual mandate would have two features that, in combination, would make it unique. First, it would impose a duty on individuals as members of society. Second, it would require people to purchase a specific service that would be heavily regulated by the federal government.”
It's over, libs.