On the presidential campaign trail, Republican Mitt Romney has repeatedly called for repeal of the 2010 health law and President Barack Obama has vowed to implement it. Yet both men could face obstacles: Romney may be stymied by the lack of a majority in Congress to do his will and Obama could be forced by fiscal concerns or public opinion to revamp parts of the law.

For a look at how Obama and Romney might change the health law in the years ahead based on interviews with health policy experts, click here.