"Most people who've looked at this -- both those who are opposed to 'Obamacare,' as I am, and those who are in favor of it -- believe that the individual mandate is kind of the linchpin of it," McConnell said. "Discussing an endless set of hypotheticals about what you would do if they did this or that is probably not productive. But we've had some conversations about it, as you can imagine. I think we'll have to wait to see what the court does."
Other Republicans I've spoken with have suggested that they'd use such a court decision to push for massive changes to, if not full repeal, of the rest of the law. The administration will argue that if the court does strike the mandate, it should also strike provisions in the law that guarantee everybody will be sold health insurance, without bias toward pre-existing medical conditions.