McCain has tried tonight, and in the past, to try to make Obama’s health care plan sound like Hillary’s. It won’t work because it isn’t true, as Obama explained pretty clearly. The real line of attack is that Obama’s plan does nothing to control costs. In Massachusetts, where employers are forced to provide health insurance, costs have soared. Almost every decent health economist recognizes that, but McCain has never developed this argument. Instead, he has relied on the more pedestrian argument of trying to tell us that Obama wants socialism.