She rose to national attention as a result of a viral Facebook video she posted in October 2018 about France's proposed eco-tax to which she was opposed.

Mouraud slowly became a divisive figure in the movement, being criticized by other yellow vest activists including Priscilla Ludosky and Eric Drouet, and the French media who have accused her of sharing of "fake news".

[9] Her involvement in the movement began in October 2018 when she posted a Facebook video that went viral about France's proposed eco-tax to which she was opposed.

[9][10] In it, she asked French President Emmanuel Macron: "What are you doing with the money apart from buying new dishes at the Élysée Palace and building yourself swimming pools?

[11] Mouraud quickly found herself on regional and national television debating French MPs, representing the average person impacted by France's new fuel laws after her video went viral.

[9] In November 2018, Mouraud lodged a complaint with the police as a result of defamatory statements made against her and threats she had received from her participation in the yellow vest movement.

[12] In early December, she was part of a delegation of yellow vest protesters who met with France's Prime Minister Edouard Philippe.

[14] Mouraud was criticized by Priscilla Ludosky and Eric Drouet in mid-January 2019 of being in the movement in order to hijack it for her own personal and political ambitions.

[16] Following Act XIV on 16 February 2019, in response to anti-semitic acts during Saturday's march in Paris, there was an open letter asking Priscillia Ludosky, Mouraud, Ingrid Levavasseur, Drouet, Maxime Nicolle and other yellow vest spokespeople "to condemn the aggression committed against Alain Finkielkraut and the antisemitic remarks of which he was the victim.

[5] Her platform for the party includes making a stronger parliament by weakening the powers of the executive, and to bring pay equity between men and women.

She delayed naming the location of the press conference out of fear that it would be disrupted by others in the officially leaderless yellow vest movement.