Until the legalisation of opposition parties in 1992, Déby's MPS was the sole legal party in Chad. Since then, 78 registered political parties have become active. In 2005, opposition parties and human rights organisations supported the boycott of the constitutional referendum that allowed Déby to stand for re-election for a third term amid reports of widespread irregularities in voter registration and government censorship of independent media outlets during the campaign. Correspondents judged the 2006 presidential elections a mere formality, as the opposition deemed the polls a farce and boycotted them.