Part C gives Medicare beneficiaries the opportunity to enroll in private health care plans and receive all Medicare services, including Part A and Part B, from a private provider.

FORBES: Magazine Article

She would also allow individuals to join the private health care plans that are offered to members of Congress, and she would create a new public insurance program modeled after Medicare.

CNN: Tax credits at heart of McCain's health care proposal

In the book, he pushed for universal health care coverage to reach 46 million uninsured Americans by expanding the federal employee health benefits program to include private employer plans together with Medicaid and Medicare.

CNN: Daschle: Health care flaws threaten economic security