excon says: "Bush — who insists that every answer to the country's health care woes can be found in the private sector — has left largely untouched the big subsidies that prop up the private Medicare Advantage insurance plans." You really can't be that naïve and disingenuous, can you? Firstly, Medicare is the brainchild of Johnson and his fascist cronies. Secondly, "Medicare Advantage" is "Medicare" for those who elect to get their coverage in that manner. It is no more a "prop up" than Part B in the existing system. You should be ashamed. To say that you 'cherry-pick' your arguments is too generous.
See generally: Medicare (United States - Wikipedia, the free encyclopedia)