Eventually, he was charged with illegally campaigning for Wadel Abdelkader Kamougué, one of the candidates in the second round of the presidential election, and engaging in arms trafficking with rebels.
[6] In an interview in July 1997, he accused Kamougué, who was by this time the President of the National Assembly, of taking a bribe of 15 million French francs from Elf, a partner in the Chad-Cameroon Petroleum Development and Pipeline Project.
On July 20, after a trial judged unfair by Amnesty International, he was found guilty of defamation and sentenced to three years imprisonment and a fine of 500,000 CFA francs.
[4] Yorongar and the other opposition candidates hotly contested the fairness of the election; the answer of the government was to arrest them twice, first briefly on May 28 and then on May 30, when they were freed after the intervention of the World Bank's President James Wolfensohn.
The FAR obtained 10 seats, and Yorongar was re-elected to the National Assembly[1][9][10] as a FAR candidate from Bebedjia constituency in Logone Oriental Department.
[1][9] Two years later, in 2004, the Chadian state was shaken by a serious crisis caused by the determination of the President to obtain a third mandate through a reform of the Constitution.
The FAR was the only major opposition party to not sign an agreement on August 13, 2007 that provided for improved electoral organization ahead of the next parliamentary election, now planned for 2009.
He said that there should instead be a dialogue involving the entire political scene, including rebels, the exiled opposition, and civil society, and that a credible election could not be conducted while a rebellion was taking place in part of the country.
[11] During a battle between government forces and rebels in N'Djamena, soldiers reportedly surrounded Yorongar's house and arrested him on February 3, 2008.
[17] In an interview on March 7, 2008, Yorongar urged the French to pressure the Chadian government to allow the return of all exiled opponents of Déby and hold a national dialogue that would include the rebels.