People takes part in a demonstration called by labour unions the day after the French presidential election, Monday, May 8, 2017, in Paris.
Marine Le Pen has been informed of her niece's decision, Le Monde reported.
Florian Philippot, the party's deputy president, called Le Pen's result in the presidential elections "unprecedented" and praised her election campaign.
Marion Maréchal-Le Pen was thought by many to be the future of the far-right National Front after her aunt Marine's defeat in the presidential election.
"If she withdraws from the line of battle now, I'm sorry".
Ms Maréchal-Le Pen was critical of her aunt's leftist economic pledges during the campaign and of her promise to drop the euro in favour of a return to the franc.
She is one of only two National Front MPs in the lower house of parliament.
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Short, medium and long-term policies need to be formulated at different levels to deal with the problem, the home minister said. The chief ministers of Bihar, Odisha, Uttar Pradesh, Maharashtra, Chhattisgarh, Jharkhand were in attendance.
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Tottenham has only played in the Champions League twice, including a feeble group-stage exit this season. It is a great win. "If we don't win against Middlesbrough (on May 8) you lose this great win", he said.
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ASEAN members and China will then start negotiating for the actual code after they concluded its framework. They said four Asean members wanted it retained, and that there were hot debates on the issue.
Ms Le Pen is estranged from her father, while Ms Marechal-Le Pen and him have closer ties.
The 27-year-old, who is the granddaughter of National Front co-founder Jean-Marie Le Pen, is also said to be stepping down from a regional council where she leads the main opposition group. The National Front, far from crying into the pastis are looking for major gains in the legislative elections in June.
Marechal-Le Pen is regarded as more traditional and conservative than Marine Le Pen.
Le Pen's defeat has raised questions about her leadership and she may not run for parliament in her northern fiefdom of Henin-Beaumont, where she narrowly lost in 2012. In her vision, the ideological base of the National Front should be pro-business, conservative, Catholic and anchored in the defense of traditional values such as family.
In a letter to the Le Dauphine Libere newspaper, she said: "You know my story, you know I've been in this political world all my life".
"I think it's in the works, but I will let her announce it if she wants to", he said.