Bruni-Sarkozy on the Bettencourt affair: The truth will come out

Carla Bruni-Sarkozy, the wife of the former French president Nicolas Sarkozy, says that the truth will come out regarding the Bettencourt affair, and she is in no doubt of her husband's innocence.

Sarkozy is under formal investigation in France over claims that he received illegal donations from 90-year-old L'Oreal heiress Liliane Bettencourt, the country's richest woman, during his 2007 election campaign. He has denied any wrongdoing.

Asked by CNBC Meets' Tania Bryer how she felt about the on-going scandal, Bruni-Sarkozy said, "Oh, I feel like…I trust the truth. So I feel like the truth is going to come out."

Bruni-Sarkozy said that her husband was dealing with the affair, "Oh he's like me. Just like me. You know, we don't have any doubts. We believe in justice and truth."

Francois Guillot | AFP | Getty Images

French Billionaire L'Oreal heiress Liliane Bettencourt

The former model-turned-singer married the former president in February 2008 and the couple now have a daughter, Giulia.

Following his defeat to current President François Hollande in the May 2012 election, Sarkozy has kept a low profile in French politics, not making many public appearances or announcements until early in July this year when he gave a speech to his party members about the future of France and Europe.

Despite the media scrutiny that came with the presidency, and with the on-going Bettencourt affair, Bruni-Sarkozy did not say whether she would favor a return to political life.

"I don't know," she said. "I'll follow him whatever he wants to do. I think…it's his life, you know… I am just supporting him whatever he decides.

"He's supporting me whatever I decide, so it's an exchange."

CNBC Meets: Carla Bruni-Sarkozy will air on Wednesday 14 August.