But there's a new GOP line of attack. It's one handed to them by the administration itself.
As Congress argued, President Barack Obama's plan to cover the uninsured suffered a self-inflicted wound.
A computer system that seemed like it was designed by gremlins gummed up the launch of open enrollment season.
Three weeks later, it's still not fixed.
Republicans hope to ride that and other defects they see in the law into the 2014 congressional elections.
Four Democratic senators are facing re-election for the first time since they voted for the Affordable Care Act, and their defeat is critical to GOP aspirations for a Senate majority.
Democrats say that's just more wishful thinking, if not obsession.