"Okay, but then we don't need to change the insurance coverage for everybody else in the country. Why don't we focus on who is uninsured and what do they need, and how we can help get them coverage," Connolly responded.

The Alliance of Community Health Plans is a trade group that represents hospital networks and health insurance companies.

However, various health-care interests have banded together to form the Partnership for America’s Health Care Future, to form a defense against Sanders's plan.

The group includes BlueCross BlueShield, the American Medical Association, and the Federation of American Hospitals.