With all eyes on the individual mandate Thursday, Mitt Romney got a shout-out from Justice Ruth Bader Ginsburg in her opinion on the Affordable Care Act.Writing on the subject of providing affordable insurance to those with preexisting conditions, Ginsburg noted that Massachusetts “cracked [the] adverse selection problem.” and highlighted briefs explaining “the success of Massachusetts’ reforms.”Under the Massachusetts health system, most residents were required to buy insurance so that insurance companies wouldn’t be left only with sick customers – and thus skyrocketing premiums.“As a result, federal lawmakers observed, Massachusetts succeeded where other States had failed,” Ginsburg wrote.