The unofficial first lady stepped in to try and rescue Mr Macron’s popularity after an Ifop poll found more than half of French voters were deeply dissatisfied with his performance as French President.
He has dipped to just a 40 per cent approval rating, down 14 points since July, as he heads towards implementing sweeping employment reforms to try and boost the economy.
Mrs Macron news channel BFM TV: “The French need to trust my husband.”
She was answering questions on whether the French were right to worry about the wider social and economic impact of the controversial labour reforms.
Mr Macron’s pro-business labour reforms, which are designed to make it easier for a company to hire and fire employees and boost job creation and economic growth, are to be passed before the end of September.

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That is despite a growing wave of critique from both the right and the left, with some saying that the so-called undemocratic reforms amounted to a “social coup d’état”.
The first lady also wished the French a “wonderful rentrée” – the big return from holidays –, adding that her husband would “do everything within his power” to put France back on the right track.
Mr Macron, a relative newcomer to politics, began his presidency with a rock-solid support base after winning the May presidential election against nationalist candidate Marine Le Pen with 66 per cent of the vote.
But an Ifop opinion poll published on Sunday for the conservative weekly Journal du Dimanche, showed that 39-year-old Mr Macron’s “dissatisfaction” rating had risen to 57 per cent from 43 per cent in July.
Mrs Macron, 64, became entangled in controversy earlier this month after an online petition opposing the president’s plans to give his wife a formal first lady role received more than 300,000 signatures.
Mr Macron’s office has since published a ‘Charter of Transparency’ detailing the public role his wife will play during the five-year term.
She said she would not be doing anything extra than previous wives of French presidents.
In an interview with Elle magazine she said: “Like all of those before me, I will take on my public role, but the French people will know the resources at my disposal.
“We’ll post my meetings and my commitments on the presidency website, so that the French people know exactly what I’m doing.”
She added: “I don’t feel like a First Lady. That’s the translation of an American expression, and I don’t like anything about it. I don’t feel like the ‘first’, or the last, or a lady. I am Brigitte Macron!”