FILE - In this June 28, 2012 file photo, House Minority Leader Nancy Pelosi of Calif., smiles as she watches the breaking news from the Supreme Court which upheld the Affordable Care Ac

FILE - In this June 28, 2012 file photo, House Minority Leader Nancy Pelosi of Calif., smiles as she watches the breaking news from the Supreme Court which upheld the Affordable Care Act, on Capitol Hill in Washington. It looks like a tax, smells like a tax, and the Supreme Court says it must be a tax. But politicians in both parties are squirming over how to define the Thing in President Barack Obama's health care law that requires people to pay up if they don't get health insurance. The problem for Obama is that, if the Thing is indeed a tax, he is by definition a raiser of taxes on the middle class, which he promised not to be. If that sounds like an opportunity for Republican presidential rival Mitt Romney, well, it's not that simple. (AP Photo/J. Scott Applewhite, File)