In the 2012 Republican Party presidential primaries, McCain endorsed former 2008 rival Mitt Romney and campaigned for him, but compared the contest to a Greek tragedy due to its drawn-out nature with massive super PAC-funded attack ads damaging all the contenders. He labeled the Supreme Court's 2010 "Citizens United v. Federal Election Commission" decision as "uninformed, arrogant, naïve", and, decrying its effects and the future scandals he thought it would bring, said it would become considered the court's "worst decision... in the 21st century". McCain took the lead in opposing the defense spending sequestrations brought on by the Budget Control Act of 2011 and gained attention for defending State Department aide Huma Abedin against charges brought by a few House Republicans that she had ties to the Muslim Brotherhood.