There is much more to the story than what you have read in the mainstream media. Yes - Maggie Marshall was responsible for it.
For some reason you want to pin the blame on Romney but even the New York Times recognizes that it was Maggie the South African who was responsible for that health care program in Massachusetts - not Romney.
And for some reason you want to minimize Romney’s role in bringing Obamacare into the world and quote the NYT as defense of your position.