On 9 October 2005, Myboto officially announced his candidacy for the 27 November 2005 presidential election before a crowd of over 5,000 supporters. Fiercely critical of Bongo and the government, Myboto alleged that Bongo had won the December 1998 presidential election through fraud. Running as an independent candidate (because the UGDD was not legalized prior to the election), he placed third out of five candidates, winning 6.58% of the vote. Following Bongo's victory, Myboto and second place candidate Pierre Mamboundou called for a general strike in early December, alleging fraud. Later in the month, they legally appealed against the results, asking that they be cancelled due to fraud. The Constitutional Court rejected the appeals on 5 January 2006, confirming Bongo's victory.