It was that great philosopher Shirley MacLaine, I believe, who said, "It's useless to hold a person to anything he says while he's in love with himself, drunk or running for office." This should shock absolutely no one:
In order to protect the new national health care law from legal challenges, the Obama administration has been forced to argue that the individual mandate represents a tax -- even though Obama himself argued the exact opposite while campaigning to pass the legislation.