since the vote totals had not yet been finalized. Winning candidates Nancy Binay and Koko Pimentel declined to attend the proclamation, on the advice of their lawyers. Lack of source code review Following the election, a poll watchdog alleged that the Comelec failed to do a review of the source code for voting machines used in the election, in violation of the Automated Election Systems Law. Under the law, the technical committee must have documented certification that the all hardware and software components were operating properly at least three months before the elections. Vote-rigging speculation Speculations of election fraud turned up following the elections, as the vote canvassing revealed a "60-30-10" pattern of votes—wherein administration, opposition, and independent senatorial candidates consistently obtained 60 percent, 30 percent, and 10 percent of the votes respectively. See also 2013 Philippine barangay elections Commission on Elections Elections in the Philippines Congress of the Philippines References External links Official website of the Commission on Elections Philippine 2013 Election Results Election 2013, Philippine Star special coverage Election 2013, Solar News special coverage Eleksyon 2013, GMA News special coverage Halalan 2013, ABS-CBN News special coverage Hatol ng Bayan, PTV/IBC/PBS/Manila Bulletin special coverage Pagbabago 2013, News5 special coverage PHVote 2013, Rappler special coverage Family affair: Philippine political dynasties 2013 2013 elections in the Philippines 2013 elections in Asia