Just a little review for those who may have forgotten, but in the 2010 SOTU speech, Obama called out the supreme court during the speech for a decision that “reversed a century of law to open the floodgates – including foreign corporations – to spend without limit in our elections.”
Now, the counter or courts argument for being right, from here: http://blog.heritage.org/2010/01/28/the-truth-about-president-obama-and-citizens-united/ was that, "Court overturned a federal ban on independent political expenditures by corporations and unions, and in so doing, it rejected the proposition that the government can decide who gets to speak and can ban some from speaking at all."
Now, I'm not a constitutional scholar like Obama and he's never wrong; so it may be that the supreme court has seen the error of its ways and will do what Obama says from here on; but considering two things; it may be even more likely obamacare goes down.
No one likes being told they are wrong and Obama did that to a court that voted 8-1 on that decision.
That decision, IMO; was a vote that limited the powers of government, and so is obamacare.
So, it may be that some justices are holding a grude and/or see this as another decision to restrict the overreach of government that has been happening since obama got in, at the minimum.
Just spreading the word that we may get a reversal for many reasons.