A revealing quote from Neal Katyal, who served as Solicitor General from May 2010 until June 2011:
"The challengers are saying that this law is unconstitutional, which means even if 95 percent of Americans want this law, they can't have it. And that's a really profound thing for an unelected court to say."
So apparently, following the Constitution doesn't matter too much to Katyal. And these are the kinds of people Obama appoints to his cabinet.