Jim Pethokoukis spotlights a new Health Affairs study on how Romneycare laid the foundation for Obamacare, and what it portends for the federal health insurance scene. In short: Expanded government coverage, higher taxpayer costs. Read here for details and analysis. His conclusion: The authors conclude that based on the Romneycare experience, Obamacare will improve coverage and not kill employer-based insurance, but containing costs will be a “considerable challenge.” That is probably the avenue Romney should use to a) attack Obamacare and b) present his own national health reform. But this study will perpetuate the meme that Romneycare was the prototype...