Former Massachusetts governor Mitt Romney must be tired of answering questions about his position on Obamacare, yet questions remain. We know he’s against it, but how does he square his opposition to it with his support for a similar plan in Massachusetts? His answer — what’s good for the states is not always good for the country — looks increasingly weak now that flaws in the Massachusetts model are coming to light. And yesterday, the Heritage Foundation’s Robert Moffit, an erstwhile supporter of the Massachusetts plan, declared in a Washington Post op-ed that Heritage’s support for the individual mandate, a...