A leaked letter in French Polynesia suggests the Tahoeraa Huiraatira Party of Gaston Flosse is in breach of party financing rules.
Radio1 has published what it says is the resignation letter of the party treasurer Mate Tuihani who claims that he found out about late payments for a bank loan which he didn't know existed and which violated the rules.
Mr Tuihani says he resigned for many reasons, including Flosse's tyrannical leadership style, disastrous decisions for the party's future and the offensive attitude towards rival candidates who are being dismissed as losers.
Mr Tuihani quit the party with his son Marcel who however remains the president of the Assembly.
Radio1 says Mate Tuihani declined to comment further, saying he didn't want a battle in the media with Flosse.
Flosse has been banned from holding elected office since 2014 when he was convicted for corruption.