Charles Krauthammer does not think there is a large margin of error for Republicans on changing health care, since they will own it once they have their hands on it:
I think the Republicans are taking on a big task. The minute they do anything on Obamacare, and that will be within a few weeks — they own it. They are going to own the entire health-care system. People are not going to distinguish — as they did not in the Obama years — between what did you change and what was unchanged in the health-care system. It is a gestalt. It’s the idea of how it is working. It is working terribly; Obamacare is collapsing and it would on its own. It would continue to, but now it will all be attributed to the Republicans. They better have something ready to go to substitute or at least a patchwork to get them between A and B. Otherwise, they are going to suffer politically on health care the way that Obama and Democrats have continually for eight years.