 In the 2012 Republican Party presidential primaries, McCain endorsed former rival Mitt Romney on the eve of the January 2012 New Hampshire primary.McCain subsequently campaigned for him, but compared the contest overall to a Greek tragedy due to its drawn-out nature with massive Super PAC-funded attack ads damaging all the contenders and risking that the eventual victor would be thus less effective in the general election against President Obama.He returned to emphasizing one of his trademark themes, labelling the Supreme Court's 2010 "Citizens United v. Federal Election Commission" decision as "uninformed, arrogant, naïve" in June 2012, adding that "I think there will be scandals associated with the worst decision of the United States Supreme Court in the 21st century."