President Obama signaled in our interview that he was prepared to address some of the concerns raised by key Senator Jay Rockefeller, who called the Baucus bill a “big middle class tax increase” this week. That means he’ll support more subsidies for middle class families. But in our most spirited exchange, the President refused to accept the argument that a mandate to buy health insurance is equivalent to a tax. Here it is: STEPHANOPOULOS: You were against the individual mandate… OBAMA: Yes. STEPHANOPOULOS: …during the campaign. Under this mandate, the government is forcing people to spend money, fining you if...