And, let me just point out, that the question on the legality of state-run health care rests on the principle of government force and coercion. Romney pretends to make a distinction between what the government can force individuals to do at the state level versus government force at the federal level. Let me be clear (to use a Newtism): No such distinction exists. The principle is the same. If government can force indivduals to buy it's health coverage at the state level, there is NO ARGUMENT for denying that the federal government has the same authority. The distinction is a lie, folks.
A key Romney adviser has already said, "We're not going to repeal Obamacare." The Minnesota Senator, Norm Coleman is likely "on the short list for a cabinet position in a potential Romney administration (perhaps even at HHS)." Sen. Coleman is not just some pundit, but an expected key participant in a future Romney administration.
Romney will modify ObamaCare to his liking, but he will never have the political will to bully congress into repealing it.
Update - Forbes
...there are two subtle signs that raise questions about Romney’s commitment to repeal. The first is that, in many settings, Romney did not argue for full repeal, but merely for repealing “the worst aspects of Obamacare” (emphasis added):Update 2
"President Obama’s new healthcare law imposes higher taxes, cuts Medicare, contains insurance price controls and expands the size of our federal government. It is unhealthy for America. That is why it is critical that we elect fiscally-responsible conservative leaders who will work to repeal the worst aspects of Obamacare, restore commonsense principles to healthcare, and focus on getting our economy back on track."
“Most telling” in Jeff Anderson’s eyes is that, on page 6 of “Believe in America,” Romney lists “five bills for Day One” of his administration. They involve: (1) cutting the corporate income tax rate to 25 percent; (2) implementing the Colombia, Panama, and South Korea free trade agreements; (3) surveying American energy reserves; (4) restructuring federal job-retraining programs; (5) cutting non-security discretionary spending by 5 percent. Anything missing from that list?
True, on the next page, Romney promises an executive order to “pave the way to end Obamacare” by granting waivers from the law to the 50 states, where applicable. But this is barely serious: most of the law isn’t subject to federal waivers, and a future Democratic President could reverse any executive order signed by Romney.
Romney admits he will tweak ObamaCare (December 2011)