On 15 May 2015 Roberto Rosario, president of the Central Electoral Board, said that there would be about 4,300 seats up for election in the "most complex elections in history".
2015年5月15日，中央選舉委員會主席羅伯托·羅薩里奧（西班牙語：Roberto Rosario）形容是次選出4300個職務的選舉是「史上最複雜的選舉」。