Mitt Romney in a comment on firing people who provide service to him has given a strong endorsement of one of the major parts of Obamacare. His example was that he should be able to change insurance companies if he got bad service. Until Obamacare you were subject to many prior condition rules if you wanted to make changes. Today (or at least whenever the part of the law that allows changing companies and transferring the care for the existing condition takes effect) you now have that freedom. Before the change, you could only be covered with no restrictions if the change was in the context of a company provided plan, or one time when you leave a company plan. So, clearly Romney supports Obamacare.